pandas.core.window.Expanding.mean — pandas 0.24.0rc1 documentation (original) (raw)
Expanding. mean(*args, **kwargs)[source]¶
Calculate the expanding mean of the values.
| Parameters: | *args Under Review. **kwargs Under Review. |
|---|---|
| Returns: | Series or DataFrame Returned object type is determined by the caller of the expanding calculation. |
See also
Series.expanding
Calling object with Series data.
DataFrame.expanding
Calling object with DataFrames.
Series.mean
Equivalent method for Series.
DataFrame.mean
Equivalent method for DataFrame.
Examples
The below examples will show rolling mean calculations with window sizes of two and three, respectively.
s = pd.Series([1, 2, 3, 4]) s.rolling(2).mean() 0 NaN 1 1.5 2 2.5 3 3.5 dtype: float64
s.rolling(3).mean() 0 NaN 1 NaN 2 2.0 3 3.0 dtype: float64