pandas.core.groupby.GroupBy.sem¶
- final GroupBy.sem(ddof=1)[source]¶
Compute standard error of the mean 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 error of the mean of values within each group.
See also
Series.groupbyApply a function groupby to a Series.
DataFrame.groupbyApply a function groupby to each row or column of a DataFrame.