[R] package(pls) - extracting explained Y-variance

[Christian Jebsen]

Dear R-help users,

I'd like to use the R-package "pls" and want to extract the explained  
Y-variance to identify the important (PLS-) principal components in my  
model, related to the y-data. For explained X-variance there is a  
function: "explvar()". If I understand it right, the summary()  
function gives an overview, where the y-variance is shown, but I can't  
extract it for plotting.

How can I do it, withou pencil and paper?

Thank you very much for help,
Christian