On 2007-10-31, Michael Gormley <[EMAIL PROTECTED]> wrote: > Given a matrix B, where B=A'A, how can I find A? > In other words, if I have a matrix B which I know is another matrix A times > its transpose, can I find matrix A?
You want to look for Cholesky decomposition, if your matrix is hermitesh. If it is complex and symmetric only, there are solutions as well, but not for any case. -- Dipl.-Math. Wilhelm Bernhard Kloke Institut fuer Arbeitsphysiologie an der Universitaet Dortmund Ardeystrasse 67, D-44139 Dortmund, Tel. 0231-1084-257 PGP: http://vestein.arb-phys.uni-dortmund.de/~wb/mypublic.key ______________________________________________ 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.
