pandas.DataFrame.applymap

DataFrame.applymap(func)

Apply a function to a DataFrame that is intended to operate elementwise, i.e. like doing map(func, series) for each series in the DataFrame

Parameters:

func : function

Python function, returns a single value from a single value

Returns:

applied : DataFrame

See also

DataFrame.apply

For operations on rows/columns

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