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.

pandas.core.groupby.GroupBy.sem pandas.core.groupby.GroupBy.sum