pandas.Index.value_counts

Index.value_counts(normalize=False, sort=True, ascending=False, bins=None, dropna=True)

Returns object containing counts of unique values.

The resulting object will be in descending order so that the first element is the most frequently-occurring element. Excludes NA values by default.

Parameters:

normalize : boolean, default False If True then the object returned will contain the relative frequencies of the unique values. sort : boolean, default True Sort by values ascending : boolean, default False Sort in ascending order bins : integer, optional Rather than count values, group them into half-open bins, a convenience for pd.cut, only works with numeric data dropna : boolean, default True Don’t include counts of NaN.

Returns:

counts : Series