correlate-Chromatogram: Correlate chromatograms

In xiaodfeng/DynamicXCMS: LC-MS and GC-MS Data Analysis

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.