From a9f5070cd5df3eb5d3143872dab2c88e8d2e471d Mon Sep 17 00:00:00 2001
From: Cimarron Mittelsteadt <cimarronm@gmail.com>
Date: Wed, 16 Dec 2015 16:32:05 -0800
Subject: [PATCH] Improved documentation for FuncFormatter formatter class

---
 lib/matplotlib/ticker.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
index 5e09dde41b23..903d62fb5c00 100644
--- a/lib/matplotlib/ticker.py
+++ b/lib/matplotlib/ticker.py
@@ -326,6 +326,9 @@ def set_offset_string(self, ofs):
 class FuncFormatter(Formatter):
     """
     User defined function for formatting
+
+    The function should take in two inputs (tick value *x* and position *pos*)
+    and return a string
     """
     def __init__(self, func):
         self.func = func