Mercurial > hg > smallbox

diff Problems/private/normcols.m @ 10:207a6ae9a76f version1.0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
(none)
author idamnjanovic
date Mon, 22 Mar 2010 15:06:25 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Problems/private/normcols.m	Mon Mar 22 15:06:25 2010 +0000
@@ -0,0 +1,17 @@
+function y = normcols(x)
+%NORMCOLS Normalize matrix columns.
+%  Y = NORMCOLS(X) normalizes the columns of X to unit length, returning
+%  the result as Y.
+%
+%  See also ADDTOCOLS.
+
+
+%  Ron Rubinstein
+%  Computer Science Department
+%  Technion, Haifa 32000 Israel
+%  ronrubin@cs
+%
+%  April 2009
+
+
+y = x*spdiag(1./sqrt(sum(x.*x)));