[R] Factor loadings and principal component plots

[ndesnoyers@att.net]

Hi- Can anyone tell me the command(s) to produce the following plots:

-Factor loadings plot for principal components
-Plot of principal component scores

Also, apart from the prcomp (or princomp) command is there any other way to obtain principal components and if so, how does it/they stack up to prcomp?

Thanks in advance for any assistance you can provide.

Neil Desnoyers