GroupBy.var()
pandas.core.groupby.GroupBy.var
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GroupBy.var(ddof=1, *args, **kwargs)
[source] -
Compute variance of groups, excluding missing values
For multiple groupings, the result index will be a MultiIndex
Parameters: ddof : integer, default 1
degrees of freedom
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Licensed under the 3-clause BSD License.
http://pandas.pydata.org/pandas-docs/version/0.20.2/generated/pandas.core.groupby.GroupBy.var.html