absent-methods {xcms} | R Documentation

## Determine which peaks are absent / present in a sample class

### Description

Determine which peaks are absent / present in a sample class

### Arguments

`object` | `xcmsSet-class` object
`class` | Name of a sample class from `sampclass`
`minfrac` | minimum fraction of samples necessary in the class to be absent/present

### Details

Determine which peaks are absent / present in a sample class The functions treat peaks that are only present because of `fillPeaks` correctly, i.e. does not count them as present.

### Value

An logical vector with the same length as `nrow(groups(object))`.

### Methods

object = "xcmsSet"

  `absent(object, ...) present(object, ...)`

### See Also

`group` `diffreport`

[Package xcms version 3.9.1 Index]