pandas.core.groupby.GroupBy.std¶
- GroupBy.std(ddof=1)[source]¶
Compute standard deviation of groups, excluding missing values.
For multiple groupings, the result index will be a MultiIndex.
- Parameters
- ddofint, default 1
Degrees of freedom.
- Returns
- Series or DataFrame
Standard deviation of values within each group.
See also
Series.groupby
Apply a function groupby to a Series.
DataFrame.groupby
Apply a function groupby to each row or column of a DataFrame.