Mercurial > hg > octave-lyh

diff scripts/plot/semilogy.m @ 10730:390d93e20531

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Plot commands now print usage information without errors when called with no arguments (bug #29986).
author Rik <octave@nomad.inbox5.com>
date Thu, 24 Jun 2010 12:22:27 -0700
parents a8ce6bdecce5
children fd0a3ac60b0e
line wrap: on
line diff
--- a/scripts/plot/semilogy.m
+++ b/scripts/plot/semilogy.m
@@ -18,9 +18,14 @@
 ## <http://www.gnu.org/licenses/>.
 
 ## -*- texinfo -*-
-## @deftypefn {Function File} {} semilogy (@var{args})
+## @deftypefn  {Function File} {} semilogy (@var{y})
+## @deftypefnx {Function File} {} semilogy (@var{x}, @var{y})
+## @deftypefnx {Function File} {} semilogy (@var{x}, @var{y}, @var{property}, @var{value}, @dots{})
+## @deftypefnx {Function File} {} semilogy (@var{x}, @var{y}, @var{fmt})
+## @deftypefnx {Function File} {} semilogy (@var{h}, @dots{})
+## @deftypefnx {Function File} {@var{h} =} semilogy (@dots{})
 ## Produce a two-dimensional plot using a logarithmic scale for the @var{y}
-## axis.  See the description of @code{plot} for a description of the
+## axis.  See the documentation of @code{plot} for a description of the
 ## arguments that @code{semilogy} will accept.
 ## @seealso{plot, semilogx, loglog}
 ## @end deftypefn
@@ -29,7 +34,11 @@
 
 function retval = semilogy (varargin)
 
-  [h, varargin] = __plt_get_axis_arg__ ("semilogy", varargin{:});
+  [h, varargin, nargs] = __plt_get_axis_arg__ ("semilogy", varargin{:});
+
+  if (nargs < 1)
+    print_usage(); 
+  endif
 
   oldh = gca ();
   unwind_protect