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diff Problems/private/normcols.m @ 61:42fcbcfca132

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author idamnjanovic
date Tue, 15 Mar 2011 12:21:31 +0000
parents 207a6ae9a76f
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Problems/private/normcols.m	Tue Mar 15 12:21:31 2011 +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)));