ChemoSpec (version 4.2.8)

plotScores: Plot PCA Scores of a Spectra Object

Description

Plots the requested PCA scores using the color scheme derived from a Spectra 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.

Usage

plotScores(spectra, pca, pcs = c(1, 2),
	ellipse = "none", tol = "none",
	use.sym = FALSE, leg.loc = "topright", ...)

Value

None. Side effect is a plot.

Rdversion

1.1

References

https://github.com/bryanhanson/ChemoSpec

See Also

For other ways of displaying the results, plotScree, plotLoadings, plot2Loadings. For a 3D plot of the scores, see plotScores3D, or plotScoresRGL for an interactive version.

Examples

data(metMUD1)
results <- c_pcaSpectra(metMUD1)
plotScores(metMUD1, results, main = "metMUD1 NMR Data",
	pcs = c(1,2), ellipse = "cls", tol = 0.05)