pandas.core.groupby.GroupBy.ohlc
GroupBy.ohlc()-
Compute sum of values, excluding missing values For multiple groupings, the result index will be a MultiIndex
© 2008–2012, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team
Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.core.groupby.GroupBy.ohlc.html