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Groupby with more than two columns isn't possible

See original GitHub issue

Describe the bug I’m a little unsure if this is a bug? Or some sort of un-documented restriction?

If you try to groupby with 3 columns, it only groups by the first. If you try to groupby with 2 columns, it only groups by both.

Version

Browser version of danfo.
danfo - 0.2.5

To Reproduce

Generate a dataframe with 3 text columns and one numeric column.
Run a groupby - const dfGroup = df.groupby(["col1", "col2","col3"])
Perform an aggregation dfGroup.col(["numeric_col"]).sum()

Expected behavior I get a dataframe with aggregation by all 3 columns. Instead I’m getting a dataframe with aggregation by a single column.

Is this currently a restriction or is this a bug?

Issue Analytics

State:
Created 2 years ago
Comments:10 (7 by maintainers)

Top GitHub Comments

1reaction

steveonicommented, Apr 6, 2021

that’s true, currently it only group by two column

0reactions

steveonicommented, Jun 9, 2021

@dom-devel you can now group by more than two columns in the new update

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