round(self, decimals: 'int | dict[IndexLabel, int] | Series' = 0, *args, **kwargs) -> 'DataFrame'
Number of decimal places to round each column to. If an int is given, round each column to the same number of places. Otherwise dict and Series round to variable numbers of places. Column names should be in the keys if :None:None:`decimals` is a dict-like, or in the index if :None:None:`decimals` is a Series. Any columns not included in :None:None:`decimals` will be left as is. Elements of :None:None:`decimals` which are not columns of the input will be ignored.
Additional keywords have no effect but might be accepted for compatibility with numpy.
Additional keywords have no effect but might be accepted for compatibility with numpy.
A DataFrame with the affected columns rounded to the specified number of decimal places.
Round a DataFrame to a variable number of decimal places.
Series.round
Round a Series to the given number of decimals.
numpy.around
Round a numpy array to the given number of decimals.
>>> df = pd.DataFrame([(.21, .32), (.01, .67), (.66, .03), (.21, .18)],
... columns=['dogs', 'cats'])
... df dogs cats 0 0.21 0.32 1 0.01 0.67 2 0.66 0.03 3 0.21 0.18
By providing an integer each column is rounded to the same number of decimal places
This example is valid syntax, but we were not able to check execution>>> df.round(1) dogs cats 0 0.2 0.3 1 0.0 0.7 2 0.7 0.0 3 0.2 0.2
With a dict, the number of places for specific columns can be specified with the column names as key and the number of decimal places as value
This example is valid syntax, but we were not able to check execution>>> df.round({'dogs': 1, 'cats': 0}) dogs cats 0 0.2 0.0 1 0.0 1.0 2 0.7 0.0 3 0.2 0.0
Using a Series, the number of places for specific columns can be specified with the column names as index and the number of decimal places as value
This example is valid syntax, but we were not able to check execution>>> decimals = pd.Series([0, 1], index=['cats', 'dogs'])See :
... df.round(decimals) dogs cats 0 0.2 0.0 1 0.0 1.0 2 0.7 0.0 3 0.2 0.0
The following pages refer to to this document either explicitly or contain code examples using this.
pandas.core.arrays.numeric.NumericArray.round
pandas.core.series.Series.round
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