[R] Would cluster with method="ward" in R output R-squared like SAS does?

[Hongmei Jia]

Hi,

I'm trying to do clustering in R, and I really want to get R-squared be
calculated when use method="ward" ( in SAS it called "RSQ" when using
method="ward').  But I couldn't find it in the summary of agnes{cluster} as
I specify method="ward".  So, anybody has a clue, or is there any other
function I should explore?

Thanks,

Hongmei