On Wed, Sep 8, 2010 at 2:52 AM, James <vuda...@gmail.com> wrote: > > Hi experts, > > I have a subspace represented as matrix of basic vectors and I want to > project a vector on that subspace. Does R have any function that help me to > do so? >
The projection of vector y onto the space spanned by the columns of X is fitted(lm.fit(X, y)) . Although not numerically optimal it can also be written: X %*% solve(crossprod(X, X), crossprod(X, y)) -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
