pandas.DataFrame.applymap — pandas 0.18.1 documentation (original) (raw)
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 |
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