R: Pull out the individual identifiers from a cross

getid {qtl} | R Documentation

## Pull out the individual identifiers from a cross

### Description

Pull out the individual identifiers from a cross object.

### Usage

    getid(cross)

### Arguments

`cross` | An object of class `cross`. See `read.cross` for details.

### Value

A vector of individual identifiers, pulled from the phenotype data (a column named `id` or `ID`).

If there are no such identifiers in the cross, the function returns `NULL`.

### Author(s)

Karl W Broman, broman@wisc.edu

### See Also

`subset.cross`, `top.errorlod`

### Examples

    data(fake.f2)

    # create an ID column
    fake.f2$pheno$id <- paste("ind", sample(nind(fake.f2)), sep="")

    getid(fake.f2)

[Package qtl version 1.46-2 Index]