Holger Brandl

It turned out to be not that easy. The problem is the types of columns. With data, we can do type introspection, but without data we simply do not know...

That's not possible. Kotlin is a statically compiled language. We can not anticipate what columns will be contained in a csv, so it's not possible to create corresponding accessors. In...

This would need to be bound via a generic type to `DataFrame` I guess. However, it's not clear to me how this would then provide a better API. Ideas?

Great suggestion which is on the roadmap already. The most tricky question would be which type to use internally in a future `DateCol`. To keep it simple I'd think that...

I guess with more types being added, the API potentially could use an overhaul to rather support some more generic column type provider that implements all basic operations. This would...

What about using `rowNumber`? On Wed, May 26, 2021 at 10:27 PM Leandro ***@***.***> wrote: > Hello, > maybe I'm just missing something but is there a way to refence...

Regarding "How do we create a column that will copy the value from column A if it is not NA but copy it from column B if it is?": It's...

> thought that it would be the current row being "processed" and not the whole dataframe I guess that would be the common intuition in kotlin. The reason why I...

Not sure if unnesting to zero row dataframe is much better here. Do you know how dplyr handles this example?

Could you post the example as text?