added hist bin fix

svn path=/trunk/matplotlib/; revision=1433

Author: jdh2358

.matplotlibrc

@@ -148,8 +148,8 @@ tick.major.size     : 4      # major tick size in points
 tick.minor.size     : 2      # minor tick size in points
 tick.major.pad      : 4      # distance to major tick label in points
 tick.minor.pad      : 4      # distance to the minor tick label in points
-tick.color          : black  # color of the tick labels 
-tick.labelsize      : 10     # fontsize of the tick labels
+tick.color          : k      # color of the tick labels 
+tick.labelsize      : 12     # fontsize of the tick labels
 
 ### Grids
 grid.color       :   black       # grid color

API_CHANGES

@@ -1,3 +1,43 @@
+API CHANGES in matplotlib-0.81.1
+
+  Sean Richards notes there was a problem in the way we created the
+  binning for histogram, which made the last bin underrepresented.
+  From his post
+
+   I see that hist uses the linspace function to create the bins and
+   then uses searchsorted to put the values in their correct
+   bin. Thats all good but I am confused over the use of linspace for
+   the bin creation. I wouldn't have thought that it does what is
+   needed, to quote the docstring it creates a "Linear spaced array
+   from min to max". For it to work correctly shouldn't the values in
+   the bins array be the same bound for each bin? (i.e. each value
+   should be the lower bound of a bin). To provide the correct bins
+   for hist would it not be something like
+ 
+    def bins(xmin, xmax, N):
+      if N==1: return xmax
+      dx = (xmax-xmin)/N # instead of N-1
+      return xmin + dx*arange(N)
+
+
+   This suggestion in implemented in 0.81.  My test script with these
+   changes does not reveal any bias in the binning
+
+    from matplotlib.numerix.mlab import randn, rand, zeros, Float
+    from matplotlib.mlab import hist, mean
+
+    Nbins = 50
+    Ntests = 200
+    results = zeros((Ntests,Nbins), typecode=Float)
+    for i in range(Ntests):
+        print 'computing', i
+        x = rand(10000)
+        n, bins = hist(x, Nbins)
+        results[i] = n
+    print mean(results)
+
+
+
 API CHANGES in matplotlib-0.81
 
 

CHANGELOG

@@ -1,6 +1,14 @@
 New entries should be added at the top
 
-2005-06-07 Fixed a bug in texmanager.py: .aux files not being removed - DSD
+
+2005-06-08 Added Sean Richard's hist binning fix -- see API_CHANGES - JDH
+
+2005-06-07 Fixed a bug in texmanager.py: .aux files not being removed
+           - DSD
+
+================================================================
+
+2005-06-07 matplotlib-0.81 released
 
 2005-06-06 Added autoscale_on prop to axes
 

LICENSE/LICENSE

@@ -1,4 +1,4 @@
-LICENSE AGREEMENT FOR MATPLOTLIB 0.80
+LICENSE AGREEMENT FOR MATPLOTLIB 0.81
 --------------------------------------
 
 1. This LICENSE AGREEMENT is between John D. Hunter ("JDH"), and the
@@ -9,30 +9,30 @@ documentation.
 2. Subject to the terms and conditions of this License Agreement, JDH
 hereby grants Licensee a nonexclusive, royalty-free, world-wide license
 to reproduce, analyze, test, perform and/or display publicly, prepare
-derivative works, distribute, and otherwise use matplotlib 0.80
+derivative works, distribute, and otherwise use matplotlib 0.81
 alone or in any derivative version, provided, however, that JDH's
 License Agreement and JDH's notice of copyright, i.e., "Copyright (c)
 2002-2005 John D. Hunter; All Rights Reserved" are retained in
-matplotlib 0.80 alone or in any derivative version prepared by
+matplotlib 0.81 alone or in any derivative version prepared by
 Licensee.
 
 3. In the event Licensee prepares a derivative work that is based on or
-incorporates matplotlib 0.80 or any part thereof, and wants to
+incorporates matplotlib 0.81 or any part thereof, and wants to
 make the derivative work available to others as provided herein, then
 Licensee hereby agrees to include in any such work a brief summary of
-the changes made to matplotlib 0.80.
+the changes made to matplotlib 0.81.
 
-4. JDH is making matplotlib 0.80 available to Licensee on an "AS
+4. JDH is making matplotlib 0.81 available to Licensee on an "AS
 IS" basis.  JDH MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
 IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, JDH MAKES NO AND
 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
-FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF MATPLOTLIB 0.80
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF MATPLOTLIB 0.81
 WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
 
 5. JDH SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF MATPLOTLIB
-0.80 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR
+0.81 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR
 LOSS AS A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING
-MATPLOTLIB 0.80, OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF
+MATPLOTLIB 0.81, OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF
 THE POSSIBILITY THEREOF.
 
 6. This License Agreement will automatically terminate upon a material
@@ -44,6 +44,6 @@ Licensee.  This License Agreement does not grant permission to use JDH
 trademarks or trade name in a trademark sense to endorse or promote
 products or services of Licensee, or any third party.
 
-8. By copying, installing or otherwise using matplotlib 0.80,
+8. By copying, installing or otherwise using matplotlib 0.81,
 Licensee agrees to be bound by the terms and conditions of this License
 Agreement.

MANIFEST

@@ -178,54 +178,92 @@ agg23/src/ChangeLog
 agg23/src/Makefile
 agg23/src/Makefile.am
 agg23/src/agg_arc.cpp
+agg23/src/agg_arc.o
 agg23/src/agg_arrowhead.cpp
+agg23/src/agg_arrowhead.o
 agg23/src/agg_bezier_arc.cpp
+agg23/src/agg_bezier_arc.o
 agg23/src/agg_bspline.cpp
+agg23/src/agg_bspline.o
 agg23/src/agg_curves.cpp
+agg23/src/agg_curves.o
 agg23/src/agg_embedded_raster_fonts.cpp
+agg23/src/agg_embedded_raster_fonts.o
 agg23/src/agg_gsv_text.cpp
+agg23/src/agg_gsv_text.o
 agg23/src/agg_image_filters.cpp
+agg23/src/agg_image_filters.o
 agg23/src/agg_line_aa_basics.cpp
+agg23/src/agg_line_aa_basics.o
 agg23/src/agg_line_profile_aa.cpp
+agg23/src/agg_line_profile_aa.o
 agg23/src/agg_path_storage.cpp
+agg23/src/agg_path_storage.o
 agg23/src/agg_rasterizer_scanline_aa.cpp
+agg23/src/agg_rasterizer_scanline_aa.o
 agg23/src/agg_rounded_rect.cpp
+agg23/src/agg_rounded_rect.o
 agg23/src/agg_sqrt_tables.cpp
+agg23/src/agg_sqrt_tables.o
 agg23/src/agg_trans_affine.cpp
+agg23/src/agg_trans_affine.o
 agg23/src/agg_trans_double_path.cpp
+agg23/src/agg_trans_double_path.o
 agg23/src/agg_trans_single_path.cpp
+agg23/src/agg_trans_single_path.o
 agg23/src/agg_trans_warp_magnifier.cpp
+agg23/src/agg_trans_warp_magnifier.o
 agg23/src/agg_vcgen_bspline.cpp
+agg23/src/agg_vcgen_bspline.o
 agg23/src/agg_vcgen_contour.cpp
+agg23/src/agg_vcgen_contour.o
 agg23/src/agg_vcgen_dash.cpp
+agg23/src/agg_vcgen_dash.o
 agg23/src/agg_vcgen_markers_term.cpp
+agg23/src/agg_vcgen_markers_term.o
 agg23/src/agg_vcgen_smooth_poly1.cpp
+agg23/src/agg_vcgen_smooth_poly1.o
 agg23/src/agg_vcgen_stroke.cpp
+agg23/src/agg_vcgen_stroke.o
 agg23/src/agg_vpgen_clip_polygon.cpp
+agg23/src/agg_vpgen_clip_polygon.o
 agg23/src/agg_vpgen_clip_polyline.cpp
+agg23/src/agg_vpgen_clip_polyline.o
 agg23/src/agg_vpgen_segmentator.cpp
+agg23/src/agg_vpgen_segmentator.o
 agg23/src/authors
 agg23/src/autogen.sh
 agg23/src/configure.in
 agg23/src/copying
 agg23/src/install
+agg23/src/libagg.a
 agg23/src/news
 agg23/src/readme
 agg23/src/ctrl/Makefile.am
 agg23/src/ctrl/agg_bezier_ctrl.cpp
+agg23/src/ctrl/agg_bezier_ctrl.o
 agg23/src/ctrl/agg_cbox_ctrl.cpp
+agg23/src/ctrl/agg_cbox_ctrl.o
 agg23/src/ctrl/agg_gamma_ctrl.cpp
+agg23/src/ctrl/agg_gamma_ctrl.o
 agg23/src/ctrl/agg_gamma_spline.cpp
+agg23/src/ctrl/agg_gamma_spline.o
 agg23/src/ctrl/agg_polygon_ctrl.cpp
+agg23/src/ctrl/agg_polygon_ctrl.o
 agg23/src/ctrl/agg_rbox_ctrl.cpp
+agg23/src/ctrl/agg_rbox_ctrl.o
 agg23/src/ctrl/agg_scale_ctrl.cpp
+agg23/src/ctrl/agg_scale_ctrl.o
 agg23/src/ctrl/agg_slider_ctrl.cpp
+agg23/src/ctrl/agg_slider_ctrl.o
 agg23/src/ctrl/agg_spline_ctrl.cpp
+agg23/src/ctrl/agg_spline_ctrl.o
 agg23/src/platform/Makefile.am
 agg23/src/platform/AmigaOS/agg_platform_support.cpp
 agg23/src/platform/BeOS/agg_platform_support.cpp
 agg23/src/platform/X11/Makefile.am
 agg23/src/platform/X11/agg_platform_support.cpp
+agg23/src/platform/X11/agg_platform_support.o
 agg23/src/platform/mac/agg_mac_pmap.cpp
 agg23/src/platform/mac/agg_platform_support.cpp
 agg23/src/platform/sdl/agg_platform_support.cpp
@@ -279,6 +317,7 @@ examples/cursor_demo.py
 examples/custom_ticker1.py
 examples/customize_rc.py
 examples/dash_control.py
+examples/dashpointlabel.py
 examples/dashtick.py
 examples/data_helper.py
 examples/date_demo1.py
@@ -526,7 +565,6 @@ lib/dateutil/rrule.py
 lib/dateutil/tz.py
 lib/matplotlib/.cvsignore
 lib/matplotlib/__init__.py
-lib/matplotlib/__init__.py.~1.53.~
 lib/matplotlib/_contour.py
 lib/matplotlib/_image.py
 lib/matplotlib/_mathtext_data.py
@@ -535,18 +573,15 @@ lib/matplotlib/_transforms.py
 lib/matplotlib/afm.py
 lib/matplotlib/agg.py
 lib/matplotlib/artist.py
-lib/matplotlib/artist.py.~1.21.~
 lib/matplotlib/axes.py
 lib/matplotlib/axes.py.orig
-lib/matplotlib/axes.py.~1.104.~
 lib/matplotlib/axis.py
-lib/matplotlib/axis.py.~1.23.~
+lib/matplotlib/axis.py.orig
+lib/matplotlib/axis.py.rej
 lib/matplotlib/backend_bases.py
 lib/matplotlib/cbook.py
 lib/matplotlib/cm.py
-lib/matplotlib/cm.py.~1.16.~
 lib/matplotlib/collections.py
-lib/matplotlib/collections.py.~1.20.~
 lib/matplotlib/colors.py
 lib/matplotlib/contour.py
 lib/matplotlib/dates.py
@@ -560,19 +595,16 @@ lib/matplotlib/mathtext.py
 lib/matplotlib/mlab.py
 lib/matplotlib/patches.py
 lib/matplotlib/pylab.py
-lib/matplotlib/pylab.py.~1.63.~
 lib/matplotlib/pyparsing.py
 lib/matplotlib/table.py
 lib/matplotlib/texmanager.py
 lib/matplotlib/text.py
 lib/matplotlib/ticker.py
-lib/matplotlib/ticker.py.~1.25.~
 lib/matplotlib/transforms.py
 lib/matplotlib/windowing.py
 lib/matplotlib/backends/.cvsignore
 lib/matplotlib/backends/__init__.py
 lib/matplotlib/backends/backend_agg.py
-lib/matplotlib/backends/backend_agg.py.~1.25.~
 lib/matplotlib/backends/backend_agg2.py
 lib/matplotlib/backends/backend_cairo.py
 lib/matplotlib/backends/backend_fltkagg.py
@@ -641,7 +673,6 @@ lib/matplotlib/enthought/util/__init__.py
 lib/matplotlib/enthought/util/resource.py
 lib/matplotlib/numerix/.cvsignore
 lib/matplotlib/numerix/__init__.py
-lib/matplotlib/numerix/__init__.py.~1.2.~
 lib/matplotlib/numerix/_na_imports.py
 lib/matplotlib/numerix/_nc_imports.py
 lib/matplotlib/numerix/fft/__init__.py
@@ -1265,6 +1296,7 @@ swig/agg_path_storage.i
 swig/agg_rasterizer_scanline_aa.i
 swig/agg_renderer_base.i
 swig/agg_renderer_scanline.i
+swig/agg_scanline_bin.i
 swig/agg_trans_affine.i
 swig/agg_typedefs.h
 swig/agg_typemaps.i

Makefile

@@ -1,6 +1,6 @@
 # Makefile for matplotlib
 
-PYTHON = /usr/local/bin/python2.3
+PYTHON = /usr/bin/python2.4
 VERSION = `${PYTHON} setup.py --version`
 
 DISTFILES = API_CHANGES KNOWN_BUGS INSTALL README TODO license	\

examples/backend_driver.py

@@ -116,7 +116,7 @@ def drive(backend, python='python2.4'):
     # backends = ['Agg', 'Cairo', 'GDK', 'PS', 'SVG', 'Template']
     backends = ['Agg', 'PS', 'SVG', 'Template']
     # backends = [ 'GTK', 'WX', 'TkAgg']
-    # backends = ['PS']
+    backends = ['Agg', 'PS']
     python = 'python2.4'
     for backend in backends:
         print 'testing %s' % backend

examples/tex_demo.py

@@ -29,6 +29,6 @@
       fontsize=16, color='r')
 grid(True)
 savefig('tex_demo.eps')
-savefig('jdh.ps')
+
 
 show()

lib/matplotlib/__init__.py

@@ -142,7 +142,7 @@
 """
 from __future__ import generators
 
-__version__  = '0.81'
+__version__  = '0.81.1'
 __revision__ = '$Revision$'
 __date__     = '$Date$'
 

lib/matplotlib/mlab.py

@@ -617,7 +617,11 @@ def hist(y, bins=10, normed=0):
         if ymin==ymax:
             ymin -= 0.5
             ymax += 0.5
-        bins = linspace(ymin, ymax, bins)
+
+        if bins==1: bins=ymax
+        dy = (ymax-ymin)/bins 
+        bins = ymin + dy*arange(bins)
+
 
     n = searchsorted(sort(y), bins)
     n = diff(concatenate([n, [len(y)]]))