correlate-Chromatogram: Correlate chromatograms

correlate,Chromatogram,Chromatogram-methodR Documentation

Correlate chromatograms

Description

Correlate intensities of two chromatograms with each other. If the two Chromatogram objects have different retention times they are first aligned to match data points in the first to data points in the second chromatogram. See align() for more details.

Usage

## S4 method for signature 'Chromatogram,Chromatogram'
correlate(x, y,
  use = "pairwise.complete.obs", method = c("pearson", "kendall",
  "spearman"), align = c("matchRtime", "approx"), ...)

Arguments

x

Chromatogram() object.

y

Chromatogram() object.

use

character(1) passed to the cor function. See cor() for details.

method

character(1) passed to the cor function. See cor() for details.

align

character(1) defining the alignment method to be used. See align() for details. The value of this parameter is passed to the method parameter of align.

...

optional parameters passed along to the align method.

Value

numeric(1) with the correlation coefficient.

Author(s)

Michael Witting, Johannes Rainer


xiaodfeng/DynamicXCMS documentation built on Aug. 6, 2023, 3:02 p.m.