Bug fix on box plot modes.

pygal/config.py

@@ -320,6 +320,10 @@ class Config(CommonConfig):
         "ie: For hermite interpolation, you can set the cardinal tension with"
         "{'type': 'cardinal', 'c': .5}", int)
 
+    mode = Key(
+        None, str, "Value", "Sets the mode to be used. (Currently only supported on box plot)",
+        "May be %s" % ' or '.join(["1.5IQR", "extremes"]))
+
     order_min = Key(
         None, int, "Value", "Minimum order of scale, defaults to None")
 

pygal/graph/box.py

@@ -47,7 +47,10 @@ class Box(Graph):
 
         def format_maybe_quartile(x):
             if is_list_like(x):
-                return 'Q1: %s Q2: %s Q3: %s' % tuple(map(sup, x[1:4]))
+                if self.mode == "extremes":
+                    return 'Min: %s Q1: %s Q2: %s Q3: %s Max: %s' % tuple(map(sup, x))
+                else:
+                    return 'Q1: %s Q2: %s Q3: %s' % tuple(map(sup, x[1:4]))
             else:
                 return sup(x)
         return format_maybe_quartile
@@ -58,7 +61,7 @@ class Box(Graph):
         within the rendering process
         """
         for serie in self.series:
-            serie.values = self._box_points(serie.values)
+            serie.values = self._box_points(serie.values, self.mode)
 
         if self._min:
             self._box.ymin = min(self._min, self.zero)