plotScores {ChemoSpecUtils}  R Documentation 
Plots the requested scores using the color scheme derived from the
Spectra
or Spectra2D
object.
Options are provided to add confidence ellipses for each group in the object.
The ellipses may be robust or classical. Option to label the extreme points provided.
plotScores( spectra, so, pcs = c(1, 2), ellipse = "none", tol = "none", use.sym = FALSE, leg.loc = "topright", ... )
spectra 

so 
"Score Object" One of the following:
Any of the above score objects will have been modified to include a
list element called 
pcs 
A vector of two integers specifying the components (scores) to plot. 
ellipse 
A character vector specifying the type of ellipses to be
plotted. One of 
tol 
A number describing the fraction of points to be labeled.

use.sym 
A logical; if TRUE, the color scheme is set to black and the
points plotted with symbols. Applies only to 
leg.loc 
Character; if 
... 
Additional parameters to be passed to the plotting functions. 
None. Side effect is a plot.
Bryan A. Hanson, DePauw University.
if (checkForPackageWithVersion("ChemoSpec", "5.1")) { library("ChemoSpec") data(metMUD1) pca < c_pcaSpectra(metMUD1) plotScores(metMUD1, pca, main = "metMUD1 NMR Data", pcs = c(1, 2), ellipse = "cls", tol = 0.05 ) } if (checkForPackageWithVersion("ChemoSpec2D", "0.3")) { library("ChemoSpec2D") data(MUD1) res < miaSpectra2D(MUD1) plotScores(MUD1, res, main = "MIA Scores", tol = 0.1, ellipse = "cls") set.seed(123) res < pfacSpectra2D(MUD1, parallel = FALSE, nfac = 2) plotScores(MUD1, res, tol = 0.1, leg.loc = "bottomright", main = "PARAFAC Score Plot") }