gdf = groupby(df, [:gender, :nationality, :hair_color]); we know we can gdf[(; gender = :X, natiaonlity = :US, hair_color=:blue)] to get a specific subdataframe, but this doesn’t work: gdf[(; gender = :X, natiaonlity = :US)] the desired behavior is to merge all hair_color variations

DataFrame how to `groupby` then index with unspecified keys (merge them)

pdeffebach November 14, 2022, 6:26pm 4

I think this has been asked before and this is not possible. You will need to re-group I think.

1 Like

Topic		Replies	Views
Combining a col from each DF group into a single DF New to Julia question , dataframes	5	322	August 25, 2022
Manipulation of dataframe rows upon repeated values in a given column New to Julia	5	763	April 15, 2021
GroupedDataFrame combine unique non-key values General Usage question , dataframes	2	361	December 4, 2020
DataFrame Groupby New to Julia dataframes	2	2164	April 26, 2018
Comparing DataFrames native API and Query Data	4	1549	September 1, 2017