PCA.Anal: Perform PCA

In flajole/MApckg: R package of MetaboAnalyst functions

Description

Uses prcomp function. Writes two output files: "pca_score.csv" and "pca_loadings.csv". Adds analSet$pca element with prcomp function output and some basic statistics.

Usage

PCA.Anal(dataSet, analSet)

Arguments

dataSet	List, data set object generated by MS_to_MA function.
analSet	List, containing the results of statistical analysis (can be just an empty list).

Value

Native analSet with one added $pca element consisting of:

• all the elements of the standard prcomp output

• $std - standard deviation

• $variance - variance explained by each PC

• $cum.var - cummulated variance explained

See Also

PCA.Loadings, PlotPCA

flajole/MApckg documentation built on May 16, 2019, 1:16 p.m.