Nikita Klimenko

Hi! Can you provide a small sample of such JSON?

Hm, but how do they summarise grouped dataframes? Right now, it works like this: ``` groupBy.aggregate { // this = dataframe count() into "count" } ``` If count() returns a...

Thank you for the report! It looks like a bug, because this seems to be working fine: ``` irisData.groupBy("Species") .sortBy { it["Petal.Length"] } ``` > In particular in combination with...

Yes, i can reproduce the problem. I don't understand how and when one could use next() and prev() in sorting though. So i'm curious about the use case and maybe...

I really like this example, thank you.

`persons.asDataFrame()` -- i believe persons.toDataFrame() does the trick https://kotlin.github.io/dataframe/createdataframe.html#todataframe

> @koperagen Thanks for the pointer. > > I'd still think that the key aspect of this ticket is still valid: Once we have objects of type E in a...

Hi! Thank you for the PR! What do you think about creating `Workbook` in the user code? Like ```kotlin val wb = ... df1.writeExcel(wb, "Sheet1") df2.writeExcel(wb, "Sheet2") ``` I like...

I agree, and writing several sheets is a common enough task to be solved by `writeExcel` itself. So `keepFile` is good. Could you also add a paragraph with an example...

Hi! It's a bit trickier :) This sample is copy-pasted by `korro` task from https://github.com/Kotlin/dataframe/blob/d8c6b2f728bb710448e402b869fb993e91f3a2a3/tests/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/api/ApiLevels.kt#L82 It should be changed there as well