MNT: use more explicit check that xmin/xmax are not NaN

tacaswell · tacaswell · commit 07f0dee61fed · 2019-04-01T15:45:01.000-04:00
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -6669,7 +6669,9 @@ def hist(self, x, bins=None, range=None, density=None, weights=None,
                 if len(xi):
                     xmin = min(xmin, np.nanmin(xi))
                     xmax = max(xmax, np.nanmax(xi))
-            if xmax > xmin:
+            # make sure we have at least one non-nan value
+            # before we
+            if np.isfinite([xmin, xmax]).all():
                 bin_range = (xmin, xmax)
 
         # If bins are not specified either explicitly or via range,
