https://raw.githubusercontent.com/EbiEga/ega-metadata-schema/main/schemas/EGA.sample.json#/properties/sampleGroupingNode describing whether the sample object is: (1) a single physical sample (a single blood sample), collected individually through its corresponding protocol; or (2) corresponds to a set of samples that, after being individually collected, was grouped together (e.g. blood samples from different donors) physically or during the experimentation and analysis. One sample corresponds to one biological replicate [EFO:0002091] (e.g. genetic content from a single cell, a tissue, buccal swab, etc.) from a single individual or from several individuals. Shall not be mistaken for technical replicates [EFO:0002090] being used several times (see https://github.com/EbiEga/ega-metadata-schema/tree/main/docs/miscellaneous/sample_replicate.jpg).
| Abstract | Extensible | Status | Identifiable | Custom Properties | Additional Properties | Access Restrictions | Defined In |
|---|---|---|---|---|---|---|---|
| Can be instantiated | No | Unknown status | No | Forbidden | Forbidden | none | EGA.sample.json* |
object (Sample group descriptor)
one (and only one) of
| Property | Type | Required | Nullable | Defined by |
|---|---|---|---|---|
| sampleGroupBoolean | boolean |
Required | cannot be null | EGA sample metadata schema |
| sampleNumber | integer |
Optional | cannot be null | EGA sample metadata schema |
| sampleGroupingLabel | string |
Optional | cannot be null | EGA sample metadata schema |
Boolean flag on whether the sample object is a group or an individual sample. Please note that boolean values (true or false) cannot be quoted, nor in uppercase.
sampleGroupBoolean
-
is required
-
Type:
boolean(Sample group boolean) -
cannot be null
-
defined in: EGA sample metadata schema
boolean (Sample group boolean)
trueNumber of individual samples (e.g. 300) encompassed by the sample group
sampleNumber
-
is optional
-
Type:
integer(Number of samples) -
cannot be null
-
defined in: EGA sample metadata schema
integer (Number of samples)
300Optional label of the sample grouping, used to add context to the group.
sampleGroupingLabel
-
is optional
-
Type:
string(Label of the sample grouping) -
cannot be null
-
defined in: EGA sample metadata schema
string (Label of the sample grouping)
"Group of samples X based on the day they were taken."