[R] Polar decomposition of a rectangular matrix

Dear R users, Is anyone aware of an R implementation of a matrix polar decomposition? X = US. I can get it from SVD but I understand that this is inefficient when dealing with large matrices. Cheers Simon Gatehouse --- School of Biological, Earth

[R] winMenuAdd misbehaving?

behaviour? 2) If this is intended for some reason, and not a bug, then is there a way of invoking the update of the menu bar from within .First() or perhaps using command line arguement? Perhaps I'm missing something obvious. Any suggestions are most welcome. Regards Simon Gatehouse

RE: [R] winMenuAdd misbehaving?

R1.7.1beta seems to be fine. Many Thanks Duncan SimonG -Original Message- From: Duncan Murdoch [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 03, 2003 11:52 AM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: [R] winMenuAdd misbehaving? On Tue, 3 Jun 2003 10:59:56 +1000 , you

[R] Semi-definite programming

Unfolding as outlined in, for example, http://www.icml2006.org/icml_documents/camera-ready/131_A_Duality_View_of_Sp.pdf Any ideas would be warmly appreciated. Simon Gatehouse School of Biological Earth Environmental Sciences University of New South Wales

[R] Tracking when an object/function was modified (Mona Kanaan)

You might find this useful. I have modified the R 'edit' function by adding attr(x,date.modified) - substring(Sys.time(),1,19) before the last line. I then changed to ls() to sort functions, paste function name and time stamp from the contents of the date.modified