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by affinepplan 1134 days ago
> I would be interested to hear what about the ergonomics of data.table you find useful. if there are some ideas that would be helpful for DataFrames.jl to learn from data.table directly I'd be happy to share it with the devs.

Personally, my main usability gripe is that it's difficult to do row-wise transformations that try to combine multiple columns by name. I know one can do ``` transform(df, AsTable() => foo ∘ Tables.NamedTupleIterator) ```

But this is 1) kind of wordy and 2) can come with enormous compile times (making it unusable) for wide tables