How do I Pandas group-by to get sum?

pythonpandasgroup-bydataframeaggregate
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Get the row(s) which have the max value in groups using groupby

pythonpandaspandas-groupbymax
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Convert columns into rows with Pandas

pythonpandas
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How to provide a reproducible copy of your DataFrame with to_clipboard()

pythonpandaspython-3.xdataframejupyter-notebook
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Split (explode) pandas dataframe string entry to separate rows

pythonpandasdataframenumpy
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