Mercurial > hg > octave-nkf

diff scripts/sparse/spy.m @ 7125:f084ba47812b

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[project @ 2007-11-08 02:29:23 by jwe]
author jwe
date Thu, 08 Nov 2007 02:29:24 +0000
parents a1dbe9d80eee
children f5005d9510f4
line wrap: on
line diff
--- a/scripts/sparse/spy.m
+++ b/scripts/sparse/spy.m
@@ -30,6 +30,10 @@
 
 function spy (S, varargin) 
 
+  if (nargin < 1)
+    print_usage ();
+  endif
+
   markersize = NaN;
   if (numel (i) < 1000)
     LineSpec = "*";