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sparse-dataframe

Grouping large sparse pandas dataframe with groupby.sum() is very slow

Grouping large sparse pandas dataframe with groupby.sum() is very slow Question: I have pandas dataframe of size (607875, 12294). The data is sparse and looks like: ID BB CC DD … 0 abc 0 0 1 … 1 bcd 0 0 0 … 2 abc 0 0 1 … … I converted it to the …

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