Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / optim-1.2.0 / private / __plot_cmds__.m

diff --git a/octave_packages/optim-1.2.0/private/__plot_cmds__.m b/octave_packages/optim-1.2.0/private/__plot_cmds__.m
new file mode 100644 (file)
index 0000000..901052a
--- /dev/null
+++ b/octave_packages/optim-1.2.0/private/__plot_cmds__.m
@@ -0,0 +1,50 @@
+%% Copyright (C) 2010, 2011 Olaf Till <olaf.till@uni-jena.de>
+%%
+%% This program 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.
+%%
+%% This program 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 this program; If not, see <http://www.gnu.org/licenses/>.
+
+function __plot_cmds__ (x, y, f)
+
+  persistent lgnd;
+  persistent use_x;
+  if (nargin == 0)
+    %% reset function
+    lgnd = [];
+    return;
+  end
+
+  if (length (size (f)) > 2)
+    return;
+  end
+
+  if (isempty (lgnd));
+    n = size (y, 2);
+    if (n == 1)
+      lgnd = {'data', 'fit'};
+    else
+      id = num2str ((1:n).');
+      lgnd1 = cat (2, repmat ('data ', n, 1), id);
+      lgnd2 = cat (2, repmat ('fit ', n, 1), id);
+      lgnd = cat (1, cellstr (lgnd1), cellstr (lgnd2));
+    end
+    use_x = size (x, 1) == size (y, 1);
+  end
+
+  x = x(:, 1);
+  if (use_x)
+    plot (x, y, 'marker', '+', 'linestyle', 'none', x, f);
+  else
+    plot (y, 'marker', '+', 'linestyle', 'none', f);
+  end
+  legend (lgnd);
+  drawnow;