Fixed bug when stacking histograms with non-integer weights. Also updated hist in pyplot.py to use proper call signature

neggert · neggert · commit 932dd88e3225 · 2012-10-15T19:09:47.000-04:00
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -8072,7 +8072,7 @@ def hist(self, x, bins=10, range=None, normed=False, weights=None,
             # so that each histogram uses the same bins
             m, bins = np.histogram(x[i], bins, weights=w[i], **hist_kwargs)
             if mlast is None:
-                mlast = np.zeros(len(bins)-1, np.int)
+                mlast = np.zeros(len(bins)-1, np.float)
             if normed:
                 db = np.diff(bins)
                 m = (m.astype(float) / db) / m.sum()
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -2654,7 +2654,7 @@ def hist(x, bins=10, range=None, normed=False, weights=None, cumulative=False,
                       weights=weights, cumulative=cumulative, bottom=bottom,
                       histtype=histtype, align=align, orientation=orientation,
                       rwidth=rwidth, log=log, color=color, label=label,
-                      **kwargs)
+                      stacked=stacked, **kwargs)
         draw_if_interactive()
     finally:
         ax.hold(washold)
