aovPCAloadings {ChemoSpec} | R Documentation |
Uses the results from aovPCAscores
to plot the corresponding
loadings.
aovPCAloadings(spectra, PCA, submat = 1, loads = 1, ref = 1, ...)
spectra |
An object of S3 class |
PCA |
List of pca results created by |
submat |
Integer. Selects list element |
loads |
An integer vector giving the loadings to plot. |
ref |
An integer specifying the reference spectrum to plot, which appears at the bottom of the plot. |
... |
Parameters to be passed to the plotting routines. Applies to base graphics only. |
The returned value depends on the graphics option selected (see GraphicsOptions
).
None. Side effect is a plot.
The plot is displayed, and a ggplot2
plot object is returned if the
value is assigned. The plot can be modified in the usual ggplot2
manner.
Bryan A. Hanson (DePauw University), Matthew J. Keinsley.
Pinto, Bosc, Nocairi, Barros, and Rutledge. "Using ANOVA-PCA for Discriminant Analysis: ..." Analytica Chimica Acta 629.1-2 (2008): 47-55.
Harrington, Vieira, Espinoza, Nien, Romero, and Yergey. "Analysis of Variance–Principal Component Analysis: ..." Analytica Chimica Acta 544.1-2 (2005): 118-27.
An example using this function can be seen in
aov_pcaSpectra
. See also plotLoadings
.
Additional documentation at https://bryanhanson.github.io/ChemoSpec/