Reading and Writing Data with Pandas - Enthought

ewm when using a DateTime index. Perform computations on each group. The shape changes; the categories in the grouping columns become the index. Can use built-in aggregation methods: mean, sum, size, count, std, var, sem, describe, first, last, nth, min, max, for example: > g.mean() … or aggregate using custom function: > g.agg(series_to_value) … or aggregate with multiple functions at ... ................
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