DOC: Add example to pandas.DataFrame.applymap

Author: proinsias

pandas/core/frame.py

@@ -4124,6 +4124,22 @@ def applymap(self, func):
         func : function
             Python function, returns a single value from a single value
 
+        Examples
+        --------
+
+        >>> df = pd.DataFrame(np.random.randn(3, 3))
+        >>> df
+            0         1          2
+        0  -0.029638  1.081563   1.280300
+        1   0.647747  0.831136  -1.549481
+        2   0.513416 -0.884417   0.195343
+        >>> df = df.applymap(lambda x: '%.2f' % x)
+        >>> df
+            0         1          2
+        0  -0.03      1.08       1.28
+        1   0.65      0.83      -1.55
+        2   0.51     -0.88       0.20
+
         Returns
         -------
         applied : DataFrame