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spc
A class containing a list of gridded components and results of principal component analysis.
predicted
object of class "SpatialPixelsDataFrame"; predicted values for components
"SpatialPixelsDataFrame"
pca
object of class "list"; output objects from the stats::prcomp process --- contains objects: 'stdev', 'rotation', 'center' and 'scale'
"list"
stats::prcomp