systematicSubset {edgeR} | R Documentation

## Take a systematic subset of indices.

### Description

Take a systematic subset of indices stratified by a ranking variable.

### Usage

    systematicSubset(n, order.by)

### Arguments

`n` | integer giving the size of the subset.
`order.by` | numeric vector of the values by which the indices are ordered.

### Value

`systematicSubset` returns a vector of size `n`.

### Author(s)

Gordon Smyth

### See Also

`order`

### Examples

    y <- rnorm(100, 1, 1)
    systematicSubset(20, y)

[Package edgeR version 3.24.3 Index]