Re: [R] computing time for solve() in Matrix package

2012-06-28 Thread Paul Rathouz
longer than when using one of the Matrix-package classes of matrices. This is what puzzles me. -- pr On Jun 26, 2012, at 12:56 PM, Paul Rathouz wrote: > Hi -- I am wondering why the time to solve (invert) a block diagonal matrix > created with bdiag() from the Matrix package does not scale wi

[R] computing time for solve() in Matrix package

2012-06-26 Thread Paul Rathouz
Paul Rathouz, PhD Professor and Chair Department of Biostatistics & Medical Informatics University of Wisconsin School of Medicine and Public Health K6/446 CSC, Box 4675 600 Highland Avenue Madison, WI 53792-4675 608.263.1706 > library(Matrix) Loading required package: lattice Attaching

[R] fast repeated matrix operations

2012-06-12 Thread Paul Rathouz
r, I am in search of existing solutions. -- pr Paul Rathouz, PhD Professor and Chair Department of Biostatistics & Medical Informatics University of Wisconsin School of Medicine and Public Health K6/446 CSC, Box 4675 600 Highland Avenue Madison, WI 53792-467