adjustRtime {xcms} | R Documentation

## Alignment: Retention time correction methods.

### Description

The `adjustRtime` method(s) perform retention time correction (alignment) between chromatograms of different samples. These methods are part of the modernized `xcms` user interface.

The implemented retention time adjustment methods are:

peakGroups

  retention time correction based on aligment of features (peak groups) present in most/all samples. See `adjustRtime-peakGroups` for more details.

obiwarp

  alignment based on the complete mz-rt data. This method does not require any identified peaks or defined features. See `adjustRtime-obiwarp` for more details.

### Author(s)

Johannes Rainer

### See Also

`retcor` for the old retention time correction methods. `plotAdjustedRtime` for visualization of alignment results.

Other retention time correction methods: `adjustRtime-obiwarp`, `adjustRtime-peakGroups`

[Package xcms version 3.16.1 Index]