# HG changeset patch
# User David Bateman <dbateman@free.fr>
# Date 1224515355 -3600
# Node ID ca410b015910bf99bbec2cf43008d46dfab51588
# Parent  ec4d9d657b175614cab50e227dc308f11130a57b
Opps with previous patch

diff --git a/scripts/plot/stairs.m b/scripts/plot/stairs.m
--- a/scripts/plot/stairs.m
+++ b/scripts/plot/stairs.m
@@ -138,7 +138,7 @@
   ys(ridx,:) = y(2:nr,:);
 
   have_line_spec = false;
-  for i = 1 : nargin - 1
+  for i = 1 : length (varargin)
     arg = varargin {i};
     if ((ischar (arg) || iscell (arg)) && ! have_line_spec)
       [linespec, valid] = __pltopt__ ("stairs", arg, false);