Return the mean of the values for the requested axis.

param axis
{index (0), columns (1)}

Axis for the function to be applied on.

param skipna
bool, default True

Exclude NA/null values when computing the result.

param level
int or level name, default None

If the axis is a MultiIndex (hierarchical), count along a particular level, collapsing into a Series.

param numeric_only
bool, default None

Include only float, int, boolean columns. If None, will attempt to use everything, then use only numeric data. Not implemented for Series. **kwargs Additional keyword arguments to be passed to the function.


Series or DataFrame (if level specified)


Parameters axis, level and numeric_only are unsupported.


Return the mean of the values for the columns.
import pandas as pd
import numpy as np
from numba import njit

def dataframe_mean():
    df = pd.DataFrame({"A": [.2, .0, .6, .2],
                       "B": [2, 0, 6, 2],
                       "C": [-1, np.nan, 1, np.inf]})

    return df.mean()

$ python ./dataframe/
A    0.25
B    2.50
C     inf
dtype: float64

See also


Return the mean of the values for the Series.