SF.net SVN: matplotlib:[6520] trunk/matplotlib

[<ry...@us...>]

Revision: 6520
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6520&view=rev
Author:   ryanmay
Date:     2008-12-08 21:23:04 +0000 (Mon, 08 Dec 2008)

Log Message:
-----------
Update CHANGELOG and api_changes for the changes to psd and friends.

Modified Paths:
--------------
    trunk/matplotlib/CHANGELOG
    trunk/matplotlib/doc/api/api_changes.rst

Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG	2008-12-08 21:16:04 UTC (rev 6519)
+++ trunk/matplotlib/CHANGELOG	2008-12-08 21:23:04 UTC (rev 6520)
@@ -1,3 +1,8 @@
+2008-12-08 Updated spectral methods (psd, csd, etc.) to scale one-sided
+           densities by a factor of 2 and, optionally, scale all densities
+           by the sampling frequency.  This gives better MatLab
+           compatibility. -RM
+
 2008-12-08 Fixed alignment of ticks in colorbars. -MGD
 
 2008-12-07 drop the deprecated "new" keyword of np.histogram() for

Modified: trunk/matplotlib/doc/api/api_changes.rst
===================================================================
--- trunk/matplotlib/doc/api/api_changes.rst	2008-12-08 21:16:04 UTC (rev 6519)
+++ trunk/matplotlib/doc/api/api_changes.rst	2008-12-08 21:23:04 UTC (rev 6520)
@@ -9,6 +9,15 @@
 Changes for 0.98.x
 ==================
 
+* Modified :func:`matplotlib.mlab.psd`, :func:`matplotlib.mlab.csd`,
+  :func:`matplotlib.mlab.cohere`, and :func:`matplotlib.mlab.specgram`
+  to scale one-sided densities by a factor of 2.  Also, optionally
+  scale the densities by the sampling frequency, which gives true values
+  of densities that can be integrated by the returned frequency values.
+  This also gives better MatLab compatibility.  The corresponding
+  :class:`matplotlib.axes.Axes` methods and :mod:`matplotlib.pyplot`
+  functions were updated as well.
+
 * Font lookup now uses a nearest-neighbor approach rather than an
   exact match.  Some fonts may be different in plots, but should be
   closer to what was requested.


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