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diff general/arrutils/shiftl.m @ 4:e44f49929e56

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Adding reorganised general toolbox, now in several subdirectories.
author samer
date Sat, 12 Jan 2013 19:21:22 +0000
parents
children 03694e5c8365
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/general/arrutils/shiftl.m	Sat Jan 12 19:21:22 2013 +0000
@@ -0,0 +1,9 @@
+function y=shiftl(x)
+% shiftl - shift a column vector up one
+% maintaining original length
+% eg [ 1 2 3 4 ] --> [ 2 3 4 0]
+if isvector(x)
+	y = [ x(2:length(x)); 0];
+else
+	y = [ x(:,2:size(x,2)), zeros(size(x,1),1) ];
+end