Creates a custom BiPlot for visualizing the results of PCA

myBiplot(pc, colorfactor, scaling = 100, nudge = 1.2, N = 10,
  dims = 1:2, ...)

Arguments

pc
output of prcomp
colorfactor
a factor the same length as nrow(pc$x) to color the points
scaling
integer to scale the vectors showing loadings
nudge
numeric to offset labels for loadings
N
number of variables with longest dim[1] or dim[2] projections to display
dims
numeric vector of length 2 indicating which PCs to plot
...
passed to plot

Value

printed plot