id_field {GenomicDataCommons} | R Documentation

## get the name of the id field

### Description

In many places in the GenomicDataCommons package, the entity ids are stored in a column or a vector with a specific name that corresponds to the field name at the GDC. The format is the entity name (singular) "_id". This generic simply returns that name from a given object.

### Usage

    id_field(x)

    ## S3 method for class 'GDCQuery'
    id_field(x)

    ## S3 method for class 'GDCResults'
    id_field(x)

### Arguments

`x` | An object representing the query or results of an entity from the GDC ("cases", "files", "annotations", "projects")

### Value

character(1) such as "case_id", "file_id", etc.

### Methods (by class)

- `GDCQuery`: GDCQuery method

- `GDCResults`: GDCResults method

### Examples

    id_field(cases())

[Package GenomicDataCommons version 1.8.0 Index]