02-Dealing-with-Categorical-Data.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Работа с категорийными (категориальными) данными (Categorical Data)\n",
    "\n",
    "Многие методы машинного обучения не могут работать с категорийными (категориальными) данными, представленными в виде текстовых значений. Например, линейная регрессия не может вычислить коэффициент бэтта для признака со значениями цветов - \"red\", \"blue\" и т.д. Вместо этого нам нужно сконвертировать такие категории в специальные численные переменные."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Imports"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import pandas as pd\n",
    "import matplotlib.pyplot as plt\n",
    "import seaborn as sns"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Данные\n",
    "\n",
    "Мы открываем .csv-файл с очищенными данными, в которых были удалены выбросы и значения NaN в предыдущих лекциях."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {},
   "outputs": [],
   "source": [
    "df = pd.read_csv(\"../DATA/Ames_NO_Missing_Data.csv\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>MS SubClass</th>\n",
       "      <th>MS Zoning</th>\n",
       "      <th>Lot Frontage</th>\n",
       "      <th>Lot Area</th>\n",
       "      <th>Street</th>\n",
       "      <th>Lot Shape</th>\n",
       "      <th>Land Contour</th>\n",
       "      <th>Utilities</th>\n",
       "      <th>Lot Config</th>\n",
       "      <th>Land Slope</th>\n",
       "      <th>...</th>\n",
       "      <th>Enclosed Porch</th>\n",
       "      <th>3Ssn Porch</th>\n",
       "      <th>Screen Porch</th>\n",
       "      <th>Pool Area</th>\n",
       "      <th>Misc Val</th>\n",
       "      <th>Mo Sold</th>\n",
       "      <th>Yr Sold</th>\n",
       "      <th>Sale Type</th>\n",
       "      <th>Sale Condition</th>\n",
       "      <th>SalePrice</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>141.0</td>\n",
       "      <td>31770</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Corner</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>5</td>\n",
       "      <td>2010</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "      <td>215000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>20</td>\n",
       "      <td>RH</td>\n",
       "      <td>80.0</td>\n",
       "      <td>11622</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>120</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>6</td>\n",
       "      <td>2010</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "      <td>105000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>81.0</td>\n",
       "      <td>14267</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Corner</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>12500</td>\n",
       "      <td>6</td>\n",
       "      <td>2010</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "      <td>172000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>93.0</td>\n",
       "      <td>11160</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Corner</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>4</td>\n",
       "      <td>2010</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "      <td>244000</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>60</td>\n",
       "      <td>RL</td>\n",
       "      <td>74.0</td>\n",
       "      <td>13830</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>3</td>\n",
       "      <td>2010</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "      <td>189900</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>5 rows × 76 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "   MS SubClass MS Zoning  Lot Frontage  Lot Area Street Lot Shape  \\\n",
       "0           20        RL         141.0     31770   Pave       IR1   \n",
       "1           20        RH          80.0     11622   Pave       Reg   \n",
       "2           20        RL          81.0     14267   Pave       IR1   \n",
       "3           20        RL          93.0     11160   Pave       Reg   \n",
       "4           60        RL          74.0     13830   Pave       IR1   \n",
       "\n",
       "  Land Contour Utilities Lot Config Land Slope  ... Enclosed Porch 3Ssn Porch  \\\n",
       "0          Lvl    AllPub     Corner        Gtl  ...              0          0   \n",
       "1          Lvl    AllPub     Inside        Gtl  ...              0          0   \n",
       "2          Lvl    AllPub     Corner        Gtl  ...              0          0   \n",
       "3          Lvl    AllPub     Corner        Gtl  ...              0          0   \n",
       "4          Lvl    AllPub     Inside        Gtl  ...              0          0   \n",
       "\n",
       "  Screen Porch Pool Area Misc Val  Mo Sold  Yr Sold  Sale Type  \\\n",
       "0            0         0        0        5     2010        WD    \n",
       "1          120         0        0        6     2010        WD    \n",
       "2            0         0    12500        6     2010        WD    \n",
       "3            0         0        0        4     2010        WD    \n",
       "4            0         0        0        3     2010        WD    \n",
       "\n",
       "   Sale Condition SalePrice  \n",
       "0          Normal    215000  \n",
       "1          Normal    105000  \n",
       "2          Normal    172000  \n",
       "3          Normal    244000  \n",
       "4          Normal    189900  \n",
       "\n",
       "[5 rows x 76 columns]"
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "df.head()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Описание данных"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "MSSubClass: Identifies the type of dwelling involved in the sale.\t\n",
      "\n",
      "        20\t1-STORY 1946 & NEWER ALL STYLES\n",
      "        30\t1-STORY 1945 & OLDER\n",
      "        40\t1-STORY W/FINISHED ATTIC ALL AGES\n",
      "        45\t1-1/2 STORY - UNFINISHED ALL AGES\n",
      "        50\t1-1/2 STORY FINISHED ALL AGES\n",
      "        60\t2-STORY 1946 & NEWER\n",
      "        70\t2-STORY 1945 & OLDER\n",
      "        75\t2-1/2 STORY ALL AGES\n",
      "        80\tSPLIT OR MULTI-LEVEL\n",
      "        85\tSPLIT FOYER\n",
      "        90\tDUPLEX - ALL STYLES AND AGES\n",
      "       120\t1-STORY PUD (Planned Unit Development) - 1946 & NEWER\n",
      "       150\t1-1/2 STORY PUD - ALL AGES\n",
      "       160\t2-STORY PUD - 1946 & NEWER\n",
      "       180\tPUD - MULTILEVEL - INCL SPLIT LEV/FOYER\n",
      "       190\t2 FAMILY CONVERSION - ALL STYLES AND AGES\n",
      "\n",
      "MSZoning: Identifies the general zoning classification of the sale.\n",
      "\t\t\n",
      "       A\tAgriculture\n",
      "       C\tCommercial\n",
      "       FV\tFloating Village Residential\n",
      "       I\tIndustrial\n",
      "       RH\tResidential High Density\n",
      "       RL\tResidential Low Density\n",
      "       RP\tResidential Low Density Park \n",
      "       RM\tResidential Medium Density\n",
      "\t\n",
      "LotFrontage: Linear feet of street connected to property\n",
      "\n",
      "LotArea: Lot size in square feet\n",
      "\n",
      "Street: Type of road access to property\n",
      "\n",
      "       Grvl\tGravel\t\n",
      "       Pave\tPaved\n",
      "       \t\n",
      "Alley: Type of alley access to property\n",
      "\n",
      "       Grvl\tGravel\n",
      "       Pave\tPaved\n",
      "       NA \tNo alley access\n",
      "\t\t\n",
      "LotShape: General shape of property\n",
      "\n",
      "       Reg\tRegular\t\n",
      "       IR1\tSlightly irregular\n",
      "       IR2\tModerately Irregular\n",
      "       IR3\tIrregular\n",
      "       \n",
      "LandContour: Flatness of the property\n",
      "\n",
      "       Lvl\tNear Flat/Level\t\n",
      "       Bnk\tBanked - Quick and significant rise from street grade to building\n",
      "       HLS\tHillside - Significant slope from side to side\n",
      "       Low\tDepression\n",
      "\t\t\n",
      "Utilities: Type of utilities available\n",
      "\t\t\n",
      "       AllPub\tAll public Utilities (E,G,W,& S)\t\n",
      "       NoSewr\tElectricity, Gas, and Water (Septic Tank)\n",
      "       NoSeWa\tElectricity and Gas Only\n",
      "       ELO\tElectricity only\t\n",
      "\t\n",
      "LotConfig: Lot configuration\n",
      "\n",
      "       Inside\tInside lot\n",
      "       Corner\tCorner lot\n",
      "       CulDSac\tCul-de-sac\n",
      "       FR2\tFrontage on 2 sides of property\n",
      "       FR3\tFrontage on 3 sides of property\n",
      "\t\n",
      "LandSlope: Slope of property\n",
      "\t\t\n",
      "       Gtl\tGentle slope\n",
      "       Mod\tModerate Slope\t\n",
      "       Sev\tSevere Slope\n",
      "\t\n",
      "Neighborhood: Physical locations within Ames city limits\n",
      "\n",
      "       Blmngtn\tBloomington Heights\n",
      "       Blueste\tBluestem\n",
      "       BrDale\tBriardale\n",
      "       BrkSide\tBrookside\n",
      "       ClearCr\tClear Creek\n",
      "       CollgCr\tCollege Creek\n",
      "       Crawfor\tCrawford\n",
      "       Edwards\tEdwards\n",
      "       Gilbert\tGilbert\n",
      "       IDOTRR\tIowa DOT and Rail Road\n",
      "       MeadowV\tMeadow Village\n",
      "       Mitchel\tMitchell\n",
      "       Names\tNorth Ames\n",
      "       NoRidge\tNorthridge\n",
      "       NPkVill\tNorthpark Villa\n",
      "       NridgHt\tNorthridge Heights\n",
      "       NWAmes\tNorthwest Ames\n",
      "       OldTown\tOld Town\n",
      "       SWISU\tSouth & West of Iowa State University\n",
      "       Sawyer\tSawyer\n",
      "       SawyerW\tSawyer West\n",
      "       Somerst\tSomerset\n",
      "       StoneBr\tStone Brook\n",
      "       Timber\tTimberland\n",
      "       Veenker\tVeenker\n",
      "\t\t\t\n",
      "Condition1: Proximity to various conditions\n",
      "\t\n",
      "       Artery\tAdjacent to arterial street\n",
      "       Feedr\tAdjacent to feeder street\t\n",
      "       Norm\tNormal\t\n",
      "       RRNn\tWithin 200' of North-South Railroad\n",
      "       RRAn\tAdjacent to North-South Railroad\n",
      "       PosN\tNear positive off-site feature--park, greenbelt, etc.\n",
      "       PosA\tAdjacent to postive off-site feature\n",
      "       RRNe\tWithin 200' of East-West Railroad\n",
      "       RRAe\tAdjacent to East-West Railroad\n",
      "\t\n",
      "Condition2: Proximity to various conditions (if more than one is present)\n",
      "\t\t\n",
      "       Artery\tAdjacent to arterial street\n",
      "       Feedr\tAdjacent to feeder street\t\n",
      "       Norm\tNormal\t\n",
      "       RRNn\tWithin 200' of North-South Railroad\n",
      "       RRAn\tAdjacent to North-South Railroad\n",
      "       PosN\tNear positive off-site feature--park, greenbelt, etc.\n",
      "       PosA\tAdjacent to postive off-site feature\n",
      "       RRNe\tWithin 200' of East-West Railroad\n",
      "       RRAe\tAdjacent to East-West Railroad\n",
      "\t\n",
      "BldgType: Type of dwelling\n",
      "\t\t\n",
      "       1Fam\tSingle-family Detached\t\n",
      "       2FmCon\tTwo-family Conversion; originally built as one-family dwelling\n",
      "       Duplx\tDuplex\n",
      "       TwnhsE\tTownhouse End Unit\n",
      "       TwnhsI\tTownhouse Inside Unit\n",
      "\t\n",
      "HouseStyle: Style of dwelling\n",
      "\t\n",
      "       1Story\tOne story\n",
      "       1.5Fin\tOne and one-half story: 2nd level finished\n",
      "       1.5Unf\tOne and one-half story: 2nd level unfinished\n",
      "       2Story\tTwo story\n",
      "       2.5Fin\tTwo and one-half story: 2nd level finished\n",
      "       2.5Unf\tTwo and one-half story: 2nd level unfinished\n",
      "       SFoyer\tSplit Foyer\n",
      "       SLvl\tSplit Level\n",
      "\t\n",
      "OverallQual: Rates the overall material and finish of the house\n",
      "\n",
      "       10\tVery Excellent\n",
      "       9\tExcellent\n",
      "       8\tVery Good\n",
      "       7\tGood\n",
      "       6\tAbove Average\n",
      "       5\tAverage\n",
      "       4\tBelow Average\n",
      "       3\tFair\n",
      "       2\tPoor\n",
      "       1\tVery Poor\n",
      "\t\n",
      "OverallCond: Rates the overall condition of the house\n",
      "\n",
      "       10\tVery Excellent\n",
      "       9\tExcellent\n",
      "       8\tVery Good\n",
      "       7\tGood\n",
      "       6\tAbove Average\t\n",
      "       5\tAverage\n",
      "       4\tBelow Average\t\n",
      "       3\tFair\n",
      "       2\tPoor\n",
      "       1\tVery Poor\n",
      "\t\t\n",
      "YearBuilt: Original construction date\n",
      "\n",
      "YearRemodAdd: Remodel date (same as construction date if no remodeling or additions)\n",
      "\n",
      "RoofStyle: Type of roof\n",
      "\n",
      "       Flat\tFlat\n",
      "       Gable\tGable\n",
      "       Gambrel\tGabrel (Barn)\n",
      "       Hip\tHip\n",
      "       Mansard\tMansard\n",
      "       Shed\tShed\n",
      "\t\t\n",
      "RoofMatl: Roof material\n",
      "\n",
      "       ClyTile\tClay or Tile\n",
      "       CompShg\tStandard (Composite) Shingle\n",
      "       Membran\tMembrane\n",
      "       Metal\tMetal\n",
      "       Roll\tRoll\n",
      "       Tar&Grv\tGravel & Tar\n",
      "       WdShake\tWood Shakes\n",
      "       WdShngl\tWood Shingles\n",
      "\t\t\n",
      "Exterior1st: Exterior covering on house\n",
      "\n",
      "       AsbShng\tAsbestos Shingles\n",
      "       AsphShn\tAsphalt Shingles\n",
      "       BrkComm\tBrick Common\n",
      "       BrkFace\tBrick Face\n",
      "       CBlock\tCinder Block\n",
      "       CemntBd\tCement Board\n",
      "       HdBoard\tHard Board\n",
      "       ImStucc\tImitation Stucco\n",
      "       MetalSd\tMetal Siding\n",
      "       Other\tOther\n",
      "       Plywood\tPlywood\n",
      "       PreCast\tPreCast\t\n",
      "       Stone\tStone\n",
      "       Stucco\tStucco\n",
      "       VinylSd\tVinyl Siding\n",
      "       Wd Sdng\tWood Siding\n",
      "       WdShing\tWood Shingles\n",
      "\t\n",
      "Exterior2nd: Exterior covering on house (if more than one material)\n",
      "\n",
      "       AsbShng\tAsbestos Shingles\n",
      "       AsphShn\tAsphalt Shingles\n",
      "       BrkComm\tBrick Common\n",
      "       BrkFace\tBrick Face\n",
      "       CBlock\tCinder Block\n",
      "       CemntBd\tCement Board\n",
      "       HdBoard\tHard Board\n",
      "       ImStucc\tImitation Stucco\n",
      "       MetalSd\tMetal Siding\n",
      "       Other\tOther\n",
      "       Plywood\tPlywood\n",
      "       PreCast\tPreCast\n",
      "       Stone\tStone\n",
      "       Stucco\tStucco\n",
      "       VinylSd\tVinyl Siding\n",
      "       Wd Sdng\tWood Siding\n",
      "       WdShing\tWood Shingles\n",
      "\t\n",
      "MasVnrType: Masonry veneer type\n",
      "\n",
      "       BrkCmn\tBrick Common\n",
      "       BrkFace\tBrick Face\n",
      "       CBlock\tCinder Block\n",
      "       None\tNone\n",
      "       Stone\tStone\n",
      "\t\n",
      "MasVnrArea: Masonry veneer area in square feet\n",
      "\n",
      "ExterQual: Evaluates the quality of the material on the exterior \n",
      "\t\t\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tAverage/Typical\n",
      "       Fa\tFair\n",
      "       Po\tPoor\n",
      "\t\t\n",
      "ExterCond: Evaluates the present condition of the material on the exterior\n",
      "\t\t\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tAverage/Typical\n",
      "       Fa\tFair\n",
      "       Po\tPoor\n",
      "\t\t\n",
      "Foundation: Type of foundation\n",
      "\t\t\n",
      "       BrkTil\tBrick & Tile\n",
      "       CBlock\tCinder Block\n",
      "       PConc\tPoured Contrete\t\n",
      "       Slab\tSlab\n",
      "       Stone\tStone\n",
      "       Wood\tWood\n",
      "\t\t\n",
      "BsmtQual: Evaluates the height of the basement\n",
      "\n",
      "       Ex\tExcellent (100+ inches)\t\n",
      "       Gd\tGood (90-99 inches)\n",
      "       TA\tTypical (80-89 inches)\n",
      "       Fa\tFair (70-79 inches)\n",
      "       Po\tPoor (<70 inches\n",
      "       NA\tNo Basement\n",
      "\t\t\n",
      "BsmtCond: Evaluates the general condition of the basement\n",
      "\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tTypical - slight dampness allowed\n",
      "       Fa\tFair - dampness or some cracking or settling\n",
      "       Po\tPoor - Severe cracking, settling, or wetness\n",
      "       NA\tNo Basement\n",
      "\t\n",
      "BsmtExposure: Refers to walkout or garden level walls\n",
      "\n",
      "       Gd\tGood Exposure\n",
      "       Av\tAverage Exposure (split levels or foyers typically score average or above)\t\n",
      "       Mn\tMimimum Exposure\n",
      "       No\tNo Exposure\n",
      "       NA\tNo Basement\n",
      "\t\n",
      "BsmtFinType1: Rating of basement finished area\n",
      "\n",
      "       GLQ\tGood Living Quarters\n",
      "       ALQ\tAverage Living Quarters\n",
      "       BLQ\tBelow Average Living Quarters\t\n",
      "       Rec\tAverage Rec Room\n",
      "       LwQ\tLow Quality\n",
      "       Unf\tUnfinshed\n",
      "       NA\tNo Basement\n",
      "\t\t\n",
      "BsmtFinSF1: Type 1 finished square feet\n",
      "\n",
      "BsmtFinType2: Rating of basement finished area (if multiple types)\n",
      "\n",
      "       GLQ\tGood Living Quarters\n",
      "       ALQ\tAverage Living Quarters\n",
      "       BLQ\tBelow Average Living Quarters\t\n",
      "       Rec\tAverage Rec Room\n",
      "       LwQ\tLow Quality\n",
      "       Unf\tUnfinshed\n",
      "       NA\tNo Basement\n",
      "\n",
      "BsmtFinSF2: Type 2 finished square feet\n",
      "\n",
      "BsmtUnfSF: Unfinished square feet of basement area\n",
      "\n",
      "TotalBsmtSF: Total square feet of basement area\n",
      "\n",
      "Heating: Type of heating\n",
      "\t\t\n",
      "       Floor\tFloor Furnace\n",
      "       GasA\tGas forced warm air furnace\n",
      "       GasW\tGas hot water or steam heat\n",
      "       Grav\tGravity furnace\t\n",
      "       OthW\tHot water or steam heat other than gas\n",
      "       Wall\tWall furnace\n",
      "\t\t\n",
      "HeatingQC: Heating quality and condition\n",
      "\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tAverage/Typical\n",
      "       Fa\tFair\n",
      "       Po\tPoor\n",
      "\t\t\n",
      "CentralAir: Central air conditioning\n",
      "\n",
      "       N\tNo\n",
      "       Y\tYes\n",
      "\t\t\n",
      "Electrical: Electrical system\n",
      "\n",
      "       SBrkr\tStandard Circuit Breakers & Romex\n",
      "       FuseA\tFuse Box over 60 AMP and all Romex wiring (Average)\t\n",
      "       FuseF\t60 AMP Fuse Box and mostly Romex wiring (Fair)\n",
      "       FuseP\t60 AMP Fuse Box and mostly knob & tube wiring (poor)\n",
      "       Mix\tMixed\n",
      "\t\t\n",
      "1stFlrSF: First Floor square feet\n",
      " \n",
      "2ndFlrSF: Second floor square feet\n",
      "\n",
      "LowQualFinSF: Low quality finished square feet (all floors)\n",
      "\n",
      "GrLivArea: Above grade (ground) living area square feet\n",
      "\n",
      "BsmtFullBath: Basement full bathrooms\n",
      "\n",
      "BsmtHalfBath: Basement half bathrooms\n",
      "\n",
      "FullBath: Full bathrooms above grade\n",
      "\n",
      "HalfBath: Half baths above grade\n",
      "\n",
      "Bedroom: Bedrooms above grade (does NOT include basement bedrooms)\n",
      "\n",
      "Kitchen: Kitchens above grade\n",
      "\n",
      "KitchenQual: Kitchen quality\n",
      "\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tTypical/Average\n",
      "       Fa\tFair\n",
      "       Po\tPoor\n",
      "       \t\n",
      "TotRmsAbvGrd: Total rooms above grade (does not include bathrooms)\n",
      "\n",
      "Functional: Home functionality (Assume typical unless deductions are warranted)\n",
      "\n",
      "       Typ\tTypical Functionality\n",
      "       Min1\tMinor Deductions 1\n",
      "       Min2\tMinor Deductions 2\n",
      "       Mod\tModerate Deductions\n",
      "       Maj1\tMajor Deductions 1\n",
      "       Maj2\tMajor Deductions 2\n",
      "       Sev\tSeverely Damaged\n",
      "       Sal\tSalvage only\n",
      "\t\t\n",
      "Fireplaces: Number of fireplaces\n",
      "\n",
      "FireplaceQu: Fireplace quality\n",
      "\n",
      "       Ex\tExcellent - Exceptional Masonry Fireplace\n",
      "       Gd\tGood - Masonry Fireplace in main level\n",
      "       TA\tAverage - Prefabricated Fireplace in main living area or Masonry Fireplace in basement\n",
      "       Fa\tFair - Prefabricated Fireplace in basement\n",
      "       Po\tPoor - Ben Franklin Stove\n",
      "       NA\tNo Fireplace\n",
      "\t\t\n",
      "GarageType: Garage location\n",
      "\t\t\n",
      "       2Types\tMore than one type of garage\n",
      "       Attchd\tAttached to home\n",
      "       Basment\tBasement Garage\n",
      "       BuiltIn\tBuilt-In (Garage part of house - typically has room above garage)\n",
      "       CarPort\tCar Port\n",
      "       Detchd\tDetached from home\n",
      "       NA\tNo Garage\n",
      "\t\t\n",
      "GarageYrBlt: Year garage was built\n",
      "\t\t\n",
      "GarageFinish: Interior finish of the garage\n",
      "\n",
      "       Fin\tFinished\n",
      "       RFn\tRough Finished\t\n",
      "       Unf\tUnfinished\n",
      "       NA\tNo Garage\n",
      "\t\t\n",
      "GarageCars: Size of garage in car capacity\n",
      "\n",
      "GarageArea: Size of garage in square feet\n",
      "\n",
      "GarageQual: Garage quality\n",
      "\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tTypical/Average\n",
      "       Fa\tFair\n",
      "       Po\tPoor\n",
      "       NA\tNo Garage\n",
      "\t\t\n",
      "GarageCond: Garage condition\n",
      "\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tTypical/Average\n",
      "       Fa\tFair\n",
      "       Po\tPoor\n",
      "       NA\tNo Garage\n",
      "\t\t\n",
      "PavedDrive: Paved driveway\n",
      "\n",
      "       Y\tPaved \n",
      "       P\tPartial Pavement\n",
      "       N\tDirt/Gravel\n",
      "\t\t\n",
      "WoodDeckSF: Wood deck area in square feet\n",
      "\n",
      "OpenPorchSF: Open porch area in square feet\n",
      "\n",
      "EnclosedPorch: Enclosed porch area in square feet\n",
      "\n",
      "3SsnPorch: Three season porch area in square feet\n",
      "\n",
      "ScreenPorch: Screen porch area in square feet\n",
      "\n",
      "PoolArea: Pool area in square feet\n",
      "\n",
      "PoolQC: Pool quality\n",
      "\t\t\n",
      "       Ex\tExcellent\n",
      "       Gd\tGood\n",
      "       TA\tAverage/Typical\n",
      "       Fa\tFair\n",
      "       NA\tNo Pool\n",
      "\t\t\n",
      "Fence: Fence quality\n",
      "\t\t\n",
      "       GdPrv\tGood Privacy\n",
      "       MnPrv\tMinimum Privacy\n",
      "       GdWo\tGood Wood\n",
      "       MnWw\tMinimum Wood/Wire\n",
      "       NA\tNo Fence\n",
      "\t\n",
      "MiscFeature: Miscellaneous feature not covered in other categories\n",
      "\t\t\n",
      "       Elev\tElevator\n",
      "       Gar2\t2nd Garage (if not described in garage section)\n",
      "       Othr\tOther\n",
      "       Shed\tShed (over 100 SF)\n",
      "       TenC\tTennis Court\n",
      "       NA\tNone\n",
      "\t\t\n",
      "MiscVal: $Value of miscellaneous feature\n",
      "\n",
      "MoSold: Month Sold (MM)\n",
      "\n",
      "YrSold: Year Sold (YYYY)\n",
      "\n",
      "SaleType: Type of sale\n",
      "\t\t\n",
      "       WD \tWarranty Deed - Conventional\n",
      "       CWD\tWarranty Deed - Cash\n",
      "       VWD\tWarranty Deed - VA Loan\n",
      "       New\tHome just constructed and sold\n",
      "       COD\tCourt Officer Deed/Estate\n",
      "       Con\tContract 15% Down payment regular terms\n",
      "       ConLw\tContract Low Down payment and low interest\n",
      "       ConLI\tContract Low Interest\n",
      "       ConLD\tContract Low Down\n",
      "       Oth\tOther\n",
      "\t\t\n",
      "SaleCondition: Condition of sale\n",
      "\n",
      "       Normal\tNormal Sale\n",
      "       Abnorml\tAbnormal Sale -  trade, foreclosure, short sale\n",
      "       AdjLand\tAdjoining Land Purchase\n",
      "       Alloca\tAllocation - two linked properties with separate deeds, typically condo with a garage unit\t\n",
      "       Family\tSale between family members\n",
      "       Partial\tHome was not completed when last assessed (associated with New Homes)\n",
      "\n"
     ]
    }
   ],
   "source": [
    "with open('../DATA/Ames_Housing_Feature_Description.txt','r') as f: \n",
    "    print(f.read())"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Числовые колонки для категорий\n",
    "\n",
    "При переводе категорийных значений в числовые значения нужно быть аккуратными и следить за тем, что числовые связи имеют смысл для модели. Например, числа в колонке MSSubClass - это просто некоторый код для каждого класса:\n",
    "\n",
    "    MSSubClass: Identifies the type of dwelling involved in the sale.\t\n",
    "\n",
    "        20\t1-STORY 1946 & NEWER ALL STYLES\n",
    "        30\t1-STORY 1945 & OLDER\n",
    "        40\t1-STORY W/FINISHED ATTIC ALL AGES\n",
    "        45\t1-1/2 STORY - UNFINISHED ALL AGES\n",
    "        50\t1-1/2 STORY FINISHED ALL AGES\n",
    "        60\t2-STORY 1946 & NEWER\n",
    "        70\t2-STORY 1945 & OLDER\n",
    "        75\t2-1/2 STORY ALL AGES\n",
    "        80\tSPLIT OR MULTI-LEVEL\n",
    "        85\tSPLIT FOYER\n",
    "        90\tDUPLEX - ALL STYLES AND AGES\n",
    "       120\t1-STORY PUD (Planned Unit Development) - 1946 & NEWER\n",
    "       150\t1-1/2 STORY PUD - ALL AGES\n",
    "       160\t2-STORY PUD - 1946 & NEWER\n",
    "       180\tPUD - MULTILEVEL - INCL SPLIT LEV/FOYER\n",
    "       190\t2 FAMILY CONVERSION - ALL STYLES AND AGES\n",
    "\n",
    "Здесь каждое число не связано с другими числами в этой же колонке. Например, 30 > 20, однако это не значит, что значение \"1-STORY 1945 & OLDER\" в каком-то смысле больше значения \"1-STORY 1946 & NEWER ALL STYLES\".  Хотя в других случаях вполне может быть, что например в поезде 1й класс и 2й класс вагонов действительно идут по порядку, если назначить им числа 1 и 2. Так что изучайте Ваши данные перед тем, как делать какие-то преобразования."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### MSSubClass"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Конвертация в строку\n",
    "df['MS SubClass'] = df['MS SubClass'].apply(str)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Создание \"Dummy\"-переменных\n",
    "\n",
    "## Как избежать мультиколлинеарности (наличия линейной зависимости между переменными) и ситуации \"Dummy Variable Trap\"\n",
    "\n",
    "https://stats.stackexchange.com/questions/144372/dummy-variable-trap"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "metadata": {},
   "outputs": [],
   "source": [
    "person_state =  pd.Series(['Dead','Alive','Dead','Alive','Dead','Dead'])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "0     Dead\n",
       "1    Alive\n",
       "2     Dead\n",
       "3    Alive\n",
       "4     Dead\n",
       "5     Dead\n",
       "dtype: object"
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "person_state"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Alive</th>\n",
       "      <th>Dead</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "   Alive  Dead\n",
       "0      0     1\n",
       "1      1     0\n",
       "2      0     1\n",
       "3      1     0\n",
       "4      0     1\n",
       "5      0     1"
      ]
     },
     "execution_count": 31,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "pd.get_dummies(person_state)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Dead</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "   Dead\n",
       "0     1\n",
       "1     0\n",
       "2     1\n",
       "3     0\n",
       "4     1\n",
       "5     1"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "pd.get_dummies(person_state,drop_first=True)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Создаём Dummy-переменные на основе колонок\n",
    "\n",
    "https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.select_dtypes.html"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>MS SubClass</th>\n",
       "      <th>MS Zoning</th>\n",
       "      <th>Street</th>\n",
       "      <th>Lot Shape</th>\n",
       "      <th>Land Contour</th>\n",
       "      <th>Utilities</th>\n",
       "      <th>Lot Config</th>\n",
       "      <th>Land Slope</th>\n",
       "      <th>Neighborhood</th>\n",
       "      <th>Condition 1</th>\n",
       "      <th>...</th>\n",
       "      <th>Kitchen Qual</th>\n",
       "      <th>Functional</th>\n",
       "      <th>Fireplace Qu</th>\n",
       "      <th>Garage Type</th>\n",
       "      <th>Garage Finish</th>\n",
       "      <th>Garage Qual</th>\n",
       "      <th>Garage Cond</th>\n",
       "      <th>Paved Drive</th>\n",
       "      <th>Sale Type</th>\n",
       "      <th>Sale Condition</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Corner</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>NAmes</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>Gd</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Fin</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>P</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>20</td>\n",
       "      <td>RH</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>NAmes</td>\n",
       "      <td>Feedr</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>None</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Unf</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Corner</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>NAmes</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>Gd</td>\n",
       "      <td>Typ</td>\n",
       "      <td>None</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Unf</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Corner</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>NAmes</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>Ex</td>\n",
       "      <td>Typ</td>\n",
       "      <td>TA</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Fin</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>60</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>Gilbert</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>TA</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Fin</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>...</th>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2920</th>\n",
       "      <td>80</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>CulDSac</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>Mitchel</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>None</td>\n",
       "      <td>Detchd</td>\n",
       "      <td>Unf</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2921</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>IR1</td>\n",
       "      <td>Low</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Mod</td>\n",
       "      <td>Mitchel</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>None</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Unf</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2922</th>\n",
       "      <td>85</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Gtl</td>\n",
       "      <td>Mitchel</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>None</td>\n",
       "      <td>None</td>\n",
       "      <td>None</td>\n",
       "      <td>None</td>\n",
       "      <td>None</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2923</th>\n",
       "      <td>20</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Mod</td>\n",
       "      <td>Mitchel</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>TA</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>RFn</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2924</th>\n",
       "      <td>60</td>\n",
       "      <td>RL</td>\n",
       "      <td>Pave</td>\n",
       "      <td>Reg</td>\n",
       "      <td>Lvl</td>\n",
       "      <td>AllPub</td>\n",
       "      <td>Inside</td>\n",
       "      <td>Mod</td>\n",
       "      <td>Mitchel</td>\n",
       "      <td>Norm</td>\n",
       "      <td>...</td>\n",
       "      <td>TA</td>\n",
       "      <td>Typ</td>\n",
       "      <td>TA</td>\n",
       "      <td>Attchd</td>\n",
       "      <td>Fin</td>\n",
       "      <td>TA</td>\n",
       "      <td>TA</td>\n",
       "      <td>Y</td>\n",
       "      <td>WD</td>\n",
       "      <td>Normal</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>2925 rows × 40 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "     MS SubClass MS Zoning Street Lot Shape Land Contour Utilities Lot Config  \\\n",
       "0             20        RL   Pave       IR1          Lvl    AllPub     Corner   \n",
       "1             20        RH   Pave       Reg          Lvl    AllPub     Inside   \n",
       "2             20        RL   Pave       IR1          Lvl    AllPub     Corner   \n",
       "3             20        RL   Pave       Reg          Lvl    AllPub     Corner   \n",
       "4             60        RL   Pave       IR1          Lvl    AllPub     Inside   \n",
       "...          ...       ...    ...       ...          ...       ...        ...   \n",
       "2920          80        RL   Pave       IR1          Lvl    AllPub    CulDSac   \n",
       "2921          20        RL   Pave       IR1          Low    AllPub     Inside   \n",
       "2922          85        RL   Pave       Reg          Lvl    AllPub     Inside   \n",
       "2923          20        RL   Pave       Reg          Lvl    AllPub     Inside   \n",
       "2924          60        RL   Pave       Reg          Lvl    AllPub     Inside   \n",
       "\n",
       "     Land Slope Neighborhood Condition 1  ... Kitchen Qual Functional  \\\n",
       "0           Gtl        NAmes        Norm  ...           TA        Typ   \n",
       "1           Gtl        NAmes       Feedr  ...           TA        Typ   \n",
       "2           Gtl        NAmes        Norm  ...           Gd        Typ   \n",
       "3           Gtl        NAmes        Norm  ...           Ex        Typ   \n",
       "4           Gtl      Gilbert        Norm  ...           TA        Typ   \n",
       "...         ...          ...         ...  ...          ...        ...   \n",
       "2920        Gtl      Mitchel        Norm  ...           TA        Typ   \n",
       "2921        Mod      Mitchel        Norm  ...           TA        Typ   \n",
       "2922        Gtl      Mitchel        Norm  ...           TA        Typ   \n",
       "2923        Mod      Mitchel        Norm  ...           TA        Typ   \n",
       "2924        Mod      Mitchel        Norm  ...           TA        Typ   \n",
       "\n",
       "     Fireplace Qu Garage Type Garage Finish Garage Qual Garage Cond  \\\n",
       "0              Gd      Attchd           Fin          TA          TA   \n",
       "1            None      Attchd           Unf          TA          TA   \n",
       "2            None      Attchd           Unf          TA          TA   \n",
       "3              TA      Attchd           Fin          TA          TA   \n",
       "4              TA      Attchd           Fin          TA          TA   \n",
       "...           ...         ...           ...         ...         ...   \n",
       "2920         None      Detchd           Unf          TA          TA   \n",
       "2921         None      Attchd           Unf          TA          TA   \n",
       "2922         None        None          None        None        None   \n",
       "2923           TA      Attchd           RFn          TA          TA   \n",
       "2924           TA      Attchd           Fin          TA          TA   \n",
       "\n",
       "     Paved Drive Sale Type Sale Condition  \n",
       "0              P       WD          Normal  \n",
       "1              Y       WD          Normal  \n",
       "2              Y       WD          Normal  \n",
       "3              Y       WD          Normal  \n",
       "4              Y       WD          Normal  \n",
       "...          ...       ...            ...  \n",
       "2920           Y       WD          Normal  \n",
       "2921           Y       WD          Normal  \n",
       "2922           Y       WD          Normal  \n",
       "2923           Y       WD          Normal  \n",
       "2924           Y       WD          Normal  \n",
       "\n",
       "[2925 rows x 40 columns]"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "df.select_dtypes(include='object')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "metadata": {},
   "outputs": [],
   "source": [
    "df_nums = df.select_dtypes(exclude='object')\n",
    "df_objs = df.select_dtypes(include='object')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class 'pandas.core.frame.DataFrame'>\n",
      "RangeIndex: 2925 entries, 0 to 2924\n",
      "Data columns (total 36 columns):\n",
      " #   Column           Non-Null Count  Dtype  \n",
      "---  ------           --------------  -----  \n",
      " 0   Lot Frontage     2925 non-null   float64\n",
      " 1   Lot Area         2925 non-null   int64  \n",
      " 2   Overall Qual     2925 non-null   int64  \n",
      " 3   Overall Cond     2925 non-null   int64  \n",
      " 4   Year Built       2925 non-null   int64  \n",
      " 5   Year Remod/Add   2925 non-null   int64  \n",
      " 6   Mas Vnr Area     2925 non-null   float64\n",
      " 7   BsmtFin SF 1     2925 non-null   float64\n",
      " 8   BsmtFin SF 2     2925 non-null   float64\n",
      " 9   Bsmt Unf SF      2925 non-null   float64\n",
      " 10  Total Bsmt SF    2925 non-null   float64\n",
      " 11  1st Flr SF       2925 non-null   int64  \n",
      " 12  2nd Flr SF       2925 non-null   int64  \n",
      " 13  Low Qual Fin SF  2925 non-null   int64  \n",
      " 14  Gr Liv Area      2925 non-null   int64  \n",
      " 15  Bsmt Full Bath   2925 non-null   float64\n",
      " 16  Bsmt Half Bath   2925 non-null   float64\n",
      " 17  Full Bath        2925 non-null   int64  \n",
      " 18  Half Bath        2925 non-null   int64  \n",
      " 19  Bedroom AbvGr    2925 non-null   int64  \n",
      " 20  Kitchen AbvGr    2925 non-null   int64  \n",
      " 21  TotRms AbvGrd    2925 non-null   int64  \n",
      " 22  Fireplaces       2925 non-null   int64  \n",
      " 23  Garage Yr Blt    2925 non-null   float64\n",
      " 24  Garage Cars      2925 non-null   float64\n",
      " 25  Garage Area      2925 non-null   float64\n",
      " 26  Wood Deck SF     2925 non-null   int64  \n",
      " 27  Open Porch SF    2925 non-null   int64  \n",
      " 28  Enclosed Porch   2925 non-null   int64  \n",
      " 29  3Ssn Porch       2925 non-null   int64  \n",
      " 30  Screen Porch     2925 non-null   int64  \n",
      " 31  Pool Area        2925 non-null   int64  \n",
      " 32  Misc Val         2925 non-null   int64  \n",
      " 33  Mo Sold          2925 non-null   int64  \n",
      " 34  Yr Sold          2925 non-null   int64  \n",
      " 35  SalePrice        2925 non-null   int64  \n",
      "dtypes: float64(11), int64(25)\n",
      "memory usage: 822.8 KB\n"
     ]
    }
   ],
   "source": [
    "df_nums.info()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class 'pandas.core.frame.DataFrame'>\n",
      "RangeIndex: 2925 entries, 0 to 2924\n",
      "Data columns (total 40 columns):\n",
      " #   Column          Non-Null Count  Dtype \n",
      "---  ------          --------------  ----- \n",
      " 0   MS SubClass     2925 non-null   object\n",
      " 1   MS Zoning       2925 non-null   object\n",
      " 2   Street          2925 non-null   object\n",
      " 3   Lot Shape       2925 non-null   object\n",
      " 4   Land Contour    2925 non-null   object\n",
      " 5   Utilities       2925 non-null   object\n",
      " 6   Lot Config      2925 non-null   object\n",
      " 7   Land Slope      2925 non-null   object\n",
      " 8   Neighborhood    2925 non-null   object\n",
      " 9   Condition 1     2925 non-null   object\n",
      " 10  Condition 2     2925 non-null   object\n",
      " 11  Bldg Type       2925 non-null   object\n",
      " 12  House Style     2925 non-null   object\n",
      " 13  Roof Style      2925 non-null   object\n",
      " 14  Roof Matl       2925 non-null   object\n",
      " 15  Exterior 1st    2925 non-null   object\n",
      " 16  Exterior 2nd    2925 non-null   object\n",
      " 17  Mas Vnr Type    2925 non-null   object\n",
      " 18  Exter Qual      2925 non-null   object\n",
      " 19  Exter Cond      2925 non-null   object\n",
      " 20  Foundation      2925 non-null   object\n",
      " 21  Bsmt Qual       2925 non-null   object\n",
      " 22  Bsmt Cond       2925 non-null   object\n",
      " 23  Bsmt Exposure   2925 non-null   object\n",
      " 24  BsmtFin Type 1  2925 non-null   object\n",
      " 25  BsmtFin Type 2  2925 non-null   object\n",
      " 26  Heating         2925 non-null   object\n",
      " 27  Heating QC      2925 non-null   object\n",
      " 28  Central Air     2925 non-null   object\n",
      " 29  Electrical      2925 non-null   object\n",
      " 30  Kitchen Qual    2925 non-null   object\n",
      " 31  Functional      2925 non-null   object\n",
      " 32  Fireplace Qu    2925 non-null   object\n",
      " 33  Garage Type     2925 non-null   object\n",
      " 34  Garage Finish   2925 non-null   object\n",
      " 35  Garage Qual     2925 non-null   object\n",
      " 36  Garage Cond     2925 non-null   object\n",
      " 37  Paved Drive     2925 non-null   object\n",
      " 38  Sale Type       2925 non-null   object\n",
      " 39  Sale Condition  2925 non-null   object\n",
      "dtypes: object(40)\n",
      "memory usage: 914.2+ KB\n"
     ]
    }
   ],
   "source": [
    "df_objs.info()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Конвертация"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "metadata": {},
   "outputs": [],
   "source": [
    "df_objs = pd.get_dummies(df_objs,drop_first=True)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "metadata": {},
   "outputs": [],
   "source": [
    "final_df = pd.concat([df_nums,df_objs],axis=1)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Lot Frontage</th>\n",
       "      <th>Lot Area</th>\n",
       "      <th>Overall Qual</th>\n",
       "      <th>Overall Cond</th>\n",
       "      <th>Year Built</th>\n",
       "      <th>Year Remod/Add</th>\n",
       "      <th>Mas Vnr Area</th>\n",
       "      <th>BsmtFin SF 1</th>\n",
       "      <th>BsmtFin SF 2</th>\n",
       "      <th>Bsmt Unf SF</th>\n",
       "      <th>...</th>\n",
       "      <th>Sale Type_ConLw</th>\n",
       "      <th>Sale Type_New</th>\n",
       "      <th>Sale Type_Oth</th>\n",
       "      <th>Sale Type_VWD</th>\n",
       "      <th>Sale Type_WD</th>\n",
       "      <th>Sale Condition_AdjLand</th>\n",
       "      <th>Sale Condition_Alloca</th>\n",
       "      <th>Sale Condition_Family</th>\n",
       "      <th>Sale Condition_Normal</th>\n",
       "      <th>Sale Condition_Partial</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>141.000000</td>\n",
       "      <td>31770</td>\n",
       "      <td>6</td>\n",
       "      <td>5</td>\n",
       "      <td>1960</td>\n",
       "      <td>1960</td>\n",
       "      <td>112.0</td>\n",
       "      <td>639.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>441.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>80.000000</td>\n",
       "      <td>11622</td>\n",
       "      <td>5</td>\n",
       "      <td>6</td>\n",
       "      <td>1961</td>\n",
       "      <td>1961</td>\n",
       "      <td>0.0</td>\n",
       "      <td>468.0</td>\n",
       "      <td>144.0</td>\n",
       "      <td>270.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>81.000000</td>\n",
       "      <td>14267</td>\n",
       "      <td>6</td>\n",
       "      <td>6</td>\n",
       "      <td>1958</td>\n",
       "      <td>1958</td>\n",
       "      <td>108.0</td>\n",
       "      <td>923.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>406.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>93.000000</td>\n",
       "      <td>11160</td>\n",
       "      <td>7</td>\n",
       "      <td>5</td>\n",
       "      <td>1968</td>\n",
       "      <td>1968</td>\n",
       "      <td>0.0</td>\n",
       "      <td>1065.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>1045.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>74.000000</td>\n",
       "      <td>13830</td>\n",
       "      <td>5</td>\n",
       "      <td>5</td>\n",
       "      <td>1997</td>\n",
       "      <td>1998</td>\n",
       "      <td>0.0</td>\n",
       "      <td>791.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>137.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>...</th>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "      <td>...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2920</th>\n",
       "      <td>37.000000</td>\n",
       "      <td>7937</td>\n",
       "      <td>6</td>\n",
       "      <td>6</td>\n",
       "      <td>1984</td>\n",
       "      <td>1984</td>\n",
       "      <td>0.0</td>\n",
       "      <td>819.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>184.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2921</th>\n",
       "      <td>75.144444</td>\n",
       "      <td>8885</td>\n",
       "      <td>5</td>\n",
       "      <td>5</td>\n",
       "      <td>1983</td>\n",
       "      <td>1983</td>\n",
       "      <td>0.0</td>\n",
       "      <td>301.0</td>\n",
       "      <td>324.0</td>\n",
       "      <td>239.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2922</th>\n",
       "      <td>62.000000</td>\n",
       "      <td>10441</td>\n",
       "      <td>5</td>\n",
       "      <td>5</td>\n",
       "      <td>1992</td>\n",
       "      <td>1992</td>\n",
       "      <td>0.0</td>\n",
       "      <td>337.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>575.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2923</th>\n",
       "      <td>77.000000</td>\n",
       "      <td>10010</td>\n",
       "      <td>5</td>\n",
       "      <td>5</td>\n",
       "      <td>1974</td>\n",
       "      <td>1975</td>\n",
       "      <td>0.0</td>\n",
       "      <td>1071.0</td>\n",
       "      <td>123.0</td>\n",
       "      <td>195.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2924</th>\n",
       "      <td>74.000000</td>\n",
       "      <td>9627</td>\n",
       "      <td>7</td>\n",
       "      <td>5</td>\n",
       "      <td>1993</td>\n",
       "      <td>1994</td>\n",
       "      <td>94.0</td>\n",
       "      <td>758.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>238.0</td>\n",
       "      <td>...</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>2925 rows × 274 columns</p>\n",
       "</div>"
      ],
      "text/plain": [
       "      Lot Frontage  Lot Area  Overall Qual  Overall Cond  Year Built  \\\n",
       "0       141.000000     31770             6             5        1960   \n",
       "1        80.000000     11622             5             6        1961   \n",
       "2        81.000000     14267             6             6        1958   \n",
       "3        93.000000     11160             7             5        1968   \n",
       "4        74.000000     13830             5             5        1997   \n",
       "...            ...       ...           ...           ...         ...   \n",
       "2920     37.000000      7937             6             6        1984   \n",
       "2921     75.144444      8885             5             5        1983   \n",
       "2922     62.000000     10441             5             5        1992   \n",
       "2923     77.000000     10010             5             5        1974   \n",
       "2924     74.000000      9627             7             5        1993   \n",
       "\n",
       "      Year Remod/Add  Mas Vnr Area  BsmtFin SF 1  BsmtFin SF 2  Bsmt Unf SF  \\\n",
       "0               1960         112.0         639.0           0.0        441.0   \n",
       "1               1961           0.0         468.0         144.0        270.0   \n",
       "2               1958         108.0         923.0           0.0        406.0   \n",
       "3               1968           0.0        1065.0           0.0       1045.0   \n",
       "4               1998           0.0         791.0           0.0        137.0   \n",
       "...              ...           ...           ...           ...          ...   \n",
       "2920            1984           0.0         819.0           0.0        184.0   \n",
       "2921            1983           0.0         301.0         324.0        239.0   \n",
       "2922            1992           0.0         337.0           0.0        575.0   \n",
       "2923            1975           0.0        1071.0         123.0        195.0   \n",
       "2924            1994          94.0         758.0           0.0        238.0   \n",
       "\n",
       "      ...  Sale Type_ConLw  Sale Type_New  Sale Type_Oth  Sale Type_VWD  \\\n",
       "0     ...                0              0              0              0   \n",
       "1     ...                0              0              0              0   \n",
       "2     ...                0              0              0              0   \n",
       "3     ...                0              0              0              0   \n",
       "4     ...                0              0              0              0   \n",
       "...   ...              ...            ...            ...            ...   \n",
       "2920  ...                0              0              0              0   \n",
       "2921  ...                0              0              0              0   \n",
       "2922  ...                0              0              0              0   \n",
       "2923  ...                0              0              0              0   \n",
       "2924  ...                0              0              0              0   \n",
       "\n",
       "      Sale Type_WD   Sale Condition_AdjLand  Sale Condition_Alloca  \\\n",
       "0                 1                       0                      0   \n",
       "1                 1                       0                      0   \n",
       "2                 1                       0                      0   \n",
       "3                 1                       0                      0   \n",
       "4                 1                       0                      0   \n",
       "...             ...                     ...                    ...   \n",
       "2920              1                       0                      0   \n",
       "2921              1                       0                      0   \n",
       "2922              1                       0                      0   \n",
       "2923              1                       0                      0   \n",
       "2924              1                       0                      0   \n",
       "\n",
       "      Sale Condition_Family  Sale Condition_Normal  Sale Condition_Partial  \n",
       "0                         0                      1                       0  \n",
       "1                         0                      1                       0  \n",
       "2                         0                      1                       0  \n",
       "3                         0                      1                       0  \n",
       "4                         0                      1                       0  \n",
       "...                     ...                    ...                     ...  \n",
       "2920                      0                      1                       0  \n",
       "2921                      0                      1                       0  \n",
       "2922                      0                      1                       0  \n",
       "2923                      0                      1                       0  \n",
       "2924                      0                      1                       0  \n",
       "\n",
       "[2925 rows x 274 columns]"
      ]
     },
     "execution_count": 41,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "final_df"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Резюме\n",
    "\n",
    "Обратите внимание, что мы не знаем, будут ли полезны все 274 колонки. Большее количество колонок может и не привести к улучшенным результатам. Мы даже можем захотеть удалить некоторые колонки, или использовать модель с регуляризацией для выбора только важных колонок. Сейчас же мы значительно увеличили соотношение колонок и строк, и это может снизить точность модели (однако мы не узнаем об этом до тех пор, пока не сравним разные модели и подходы)."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "Exter Qual_TA       -0.591459\n",
       "Kitchen Qual_TA     -0.527461\n",
       "Fireplace Qu_None   -0.481740\n",
       "Bsmt Qual_TA        -0.453022\n",
       "Garage Finish_Unf   -0.422363\n",
       "                       ...   \n",
       "Garage Cars          0.648488\n",
       "Total Bsmt SF        0.660983\n",
       "Gr Liv Area          0.727279\n",
       "Overall Qual         0.802637\n",
       "SalePrice            1.000000\n",
       "Name: SalePrice, Length: 274, dtype: float64"
      ]
     },
     "execution_count": 49,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "final_df.corr()['SalePrice'].sort_values()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "    OverallQual: Rates the overall material and finish of the house\n",
    "\n",
    "           10\tVery Excellent\n",
    "           9\tExcellent\n",
    "           8\tVery Good\n",
    "           7\tGood\n",
    "           6\tAbove Average\n",
    "           5\tAverage\n",
    "           4\tBelow Average\n",
    "           3\tFair\n",
    "           2\tPoor\n",
    "           1\tVery Poor"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Эту колонку скорее всего заполнял риелтор, а это значит, что эта колонка может содержать обобщённую информацию с других признаков. Но если бы мы захотели использовать этот признак для предсказывания цены дома, то для каждого нового дома для применения нашей модели нам пришлось бы спрашивать риелтора!"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Сохраняем финальный набор данных"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "metadata": {},
   "outputs": [],
   "source": [
    "final_df.to_csv('../DATA/AMES_Final_DF.csv')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "----"
   ]
  }
 ],
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