I'm working with prcomp() function in R. I was wondering if there is any easy way to see variables contribution for each principal components.
Or, if prcomp isn't designed for that, which pca analysis (or pca "like") I can use to answer this question:
Which variables in the raw data are the most discriminant?
How to see the contribution of raw data variables in all principal components
Or, for each principal components:
PC1 = Var55 + Var2000 ( or 78% Var55 + 22% Var2000)
PC2 = Var19 + Var32 + Var45
PC3 = ...
pc1 <- prcomp(USArrests); summary(pc1)
– Adam QuekcolSums(abs(pc1$rotation))
might give you some idea. (summary
also gives the rotations.) – Axeman