def resample(self, by):
'''
Group DataFrame by date time index.
:param by: Used to determine the groups for the groupby.
:returns: GroupBy object
'''
gb = self._dataframe.groupByIndex(by)
return groupby.GroupBy(gb)
def resample(self, by):
'''
Group series by date time index.
:param by: Used to determine the groups for the groupby.
:returns: GroupBy object.
'''
gb = self._series.resample(by)
return groupby.GroupBy(gb)
def groupby(self, by=None):
'''
Group Series.
:param by: Used to determine the groups for the groupby.
:returns: GroupBy object.
'''
gb = self._series.groupBy(by)
return groupby.GroupBy(gb)
def groupby(self, by):
'''
Group DataFrame.
:param by: Period string.
:returns: GroupBy object.
'''
if isinstance(by, basestring):
by = [by]
gb = self._dataframe.groupBy(by)
return groupby.GroupBy(gb)
