pandas.Series.count

Series.count(self, level=None)

Return number of non-NA/null observations in the Series.

Parameters:

level : int or level name, default None

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

Returns:

int or Series (if level specified)

Number of non-null values in the Series.

Examples

>>> s = pd.Series([0.0, 1.0, np.nan])
>>> s.count()
2