ggbiplot.princomp: ggplot biplot function for princomp objects
In low-decarie/ggpca: Creates ggplot biplot methods for pca objects

Description Usage Arguments Value See Also Examples

ggplot biplot function for princomp objects

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## S3 method for class 'princomp'
ggbiplot(PC, selected.pc = c(1, 2), groups = NULL,
  scale = 1, ...)

`PC`	a fitted object from princomp (from stats package)
`selected.pc`	number of two principle components
`obsnames`	name assigned to each point
`scale`	scaling for explanatory variable arrows
`...`	other arguments to be passed to qplot

a ggplot object

princomp

p <- ggbiplot.princomp(PC=princomp(iris[,-5]),
                   selected.pc=c(1,2),
                   obsnames=iris[,5],
                   main="PCA of iris dataset")
print(p)