retexp {xcms} | R Documentation

## Set retention time window to a specified width

### Description

Expands (or contracts) the retention time window in each row of a matrix as defined by the `retmin` and `retmax` columns.

### Usage

    retexp(peakrange, width = 200)

### Arguments

`peakrange` | maxtrix with columns `retmin` and `retmax`
`width` | new width for the window

### Value

The altered matrix.

### Author(s)

Colin A. Smith, csmith@scripps.edu

### See Also

`getEIC`

[Package xcms version 3.0.2 Index]