--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/plot/scatter.m	Mon Nov 26 20:42:11 2007 +0000
@@ -0,0 +1,83 @@
+## Copyright (C) 2007 David Bateman
+##
+## This file is part of Octave.
+##
+## Octave is free software; you can redistribute it and/or modify it
+## under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 3 of the License, or (at
+## your option) any later version.
+##
+## Octave is distributed in the hope that it will be useful, but
+## WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with Octave; see the file COPYING.  If not, see
+## <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function File} {} scatter (@var{x}, @var{y}, @var{s}, @var{c})
+## @deftypefnx {Function File} {} scatter (@dots{}, 'filled')
+## @deftypefnx {Function File} {} scatter (@dots{}, @var{style})
+## @deftypefnx {Function File} {} scatter (@dots{}, @var{prop}, @var{val})
+## @deftypefnx {Function File} {} scatter (@var{h}, @dots{})
+## @deftypefnx {Function File} {@var{h} =} scatter (@dots{})
+##
+## Plot a scatter plot of the data. A marker is ploted at each point 
+## defined by the points in the vectors @var{x} and @var{y}. The size of
+## the markers used is determined by the @var{s}, which can be a scalar, 
+## a vector of the same length of @var{x} and @var{y}. If @var{s} is not 
+## given or is an empty matrix, then the default value of 8 points is used.
+##
+## The color of the markers is determined by @var{c}, which can be a string
+## defining a fixed color, a 3 element vector giving the red, green and blue 
+## components of the color, a vector of the same length as @var{x} that gives
+## a scaled index into the current colormap, or a @var{n}-by-3 matrix defining
+## the colors of each of the markers individually.
+##
+## The marker to use can be changed with the @var{style} argument, that is a 
+## string defining a marker in the same manner as the @code{plot} command. 
+## If the argument 'filled' is given then the markers as filled. All 
+## additional arguments are passed to the underlying patch command.
+##
+## The optional return value @var{h} provides a handle to the patch object
+##
+## @example
+## @group
+## x = randn (100, 1);
+## y = randn (100, 1);
+## scatter (x, y, [], sqrt(x.^2 + y.^2));
+## @end group
+## @end example
+##
+## @seealso{plot, patch, scatter3}
+## @end deftypefn
+
+function retval = scatter (varargin)
+
+  if (nargin < 2)
+    print_usage ();
+  elseif (isscalar (varargin{1}) && ishandle (varargin{1}))
+    h = varargin {1};
+    if (! strcmp (get (h, "type"), "axes"))
+      error ("scatter: expecting first argument to be an axes object");
+    endif
+    oldh = gca ();
+    unwind_protect
+      axes (h);
+      newplot ();
+      tmp = __scatter__ (h, 2, "scatter", varargin{2:end});
+    unwind_protect_cleanup
+      axes (oldh);
+    end_unwind_protect
+  else
+    newplot ();
+    tmp = __scatter__ (gca (), 2, "scatter", varargin{:});
+  endif
+
+  if (nargout > 0)
+    retval = tmp;
+  endif
+
+endfunction