Last data update: 2014.03.03

R: R2 goodness of fit
R2VX,pcaRes-methodR Documentation

R2 goodness of fit

Description

Flexible calculation of R2 goodness of fit.

Usage

## S4 method for signature 'pcaRes'
R2VX(object, direction = c("variables", "observations",
  "complete"), data = completeObs(object), pcs = nP(object))

Arguments

object

a PCA model object

direction

choose between calculating R2 per variable, per observation or for the entire data with 'variables', 'observations' or 'complete'.

data

the data used to fit the model

pcs

the number of PCs to use to calculate R2

Value

A vector with R2 values

Author(s)

Henning Redestig

Examples

R2VX(pca(iris))

Results


R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(pcaMethods)
Loading required package: Biobase
Loading required package: BiocGenerics
Loading required package: parallel

Attaching package: 'BiocGenerics'

The following objects are masked from 'package:parallel':

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked from 'package:stats':

    IQR, mad, xtabs

The following objects are masked from 'package:base':

    Filter, Find, Map, Position, Reduce, anyDuplicated, append,
    as.data.frame, cbind, colnames, do.call, duplicated, eval, evalq,
    get, grep, grepl, intersect, is.unsorted, lapply, lengths, mapply,
    match, mget, order, paste, pmax, pmax.int, pmin, pmin.int, rank,
    rbind, rownames, sapply, setdiff, sort, table, tapply, union,
    unique, unsplit

Welcome to Bioconductor

    Vignettes contain introductory material; view with
    'browseVignettes()'. To cite Bioconductor, see
    'citation("Biobase")', and for packages 'citation("pkgname")'.


Attaching package: 'pcaMethods'

The following object is masked from 'package:stats':

    loadings

> png(filename="/home/ddbj/snapshot/RGM3/R_BC/result/pcaMethods/R2VX-pcaRes-method.Rd_%03d_medium.png", width=480, height=480)
> ### Name: R2VX,pcaRes-method
> ### Title: R2 goodness of fit
> ### Aliases: R2VX R2VX,pcaRes-method
> 
> ### ** Examples
> 
> R2VX(pca(iris))
Sepal.Length  Sepal.Width Petal.Length  Petal.Width 
   0.9579017    0.8400028    0.9980931    0.9365937 
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>