DataFrames.jl

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DataFrameColumns support for sorting

9

I found myself wanting to find the keys of the DataFrame, ordered by some comparator of their columns. As it stands, it seems that the most straightforward way to do...

adienes

filter(;skipmissing=true)

2

`subset` has `skipmissing=` but `filter` doesn't. It would be convenient to have it.

jariji

renamecols function in transform

3

`innerjoin` takes a `renamecols` function but `transform` doesn't. I want to say `transform(... => AsTable; renamecols=x->"foo$x")`.

jariji

unnest

4

Extract a table-valued column into top-level columns. Code by Bogumił Kamiński on Slack. ```jl unnest(df, col) = flatten( select(df, Not(col), col => ByRow(Tables.columntable) => AsTable), names(df, Not(col)) ) ``` This...

jariji

Demonstrate how to aggregate over grouped array-like elements. (#3424) ```julia julia> df = DataFrame(a=[1, 1, 2, 2], b=[[1, 2], [2, 3], [3, 4], [4, 5]]) 4×2 DataFrame Row │ a...

huangyxi

Feature request: Pairs in stack

2

This is a small feature that might save me some typing (that is, feel free to ignore) `stack` is a nice function. But I'm finding that frequently, I want to...

pdeffebach

Add comparison function for dataframes which can handle both isapprox and isequal column types

2

The case is for building tests around DataFrames.jl (At least) two rather old discourse issue have been opened around this - [mentioning isapprox with recent comments (because of myself)](https://discourse.julialang.org/t/is-there-a-package-to-compare-if-two-dataframes-are-the-same/44381) -...

schlichtanders

CompatHelper: add new compat entry for Statistics at version 1, (keep existing compat)

2

This pull request sets the compat entry for the `Statistics` package to `1`. This keeps the compat entries for earlier versions. Note: I have not tested your package with this...

github-actions[bot]

Revisit spreading for `AsTable` output`

6

[Here](https://discourse.julialang.org/t/trouble-translating-some-dplyr-code-to-dataframesmeta/107555/3) is a use-case where DataFrames.jl compares unfavorably to dplyr. Basically, the best way to do inter-dependent column transformations is to use `AsTable` and return a `NamedTuple`. However in OP's...

pdeffebach

Column insertion in DataFrameRow

2

Fixes https://github.com/JuliaData/DataFrames.jl/issues/3390 @nalimilan - I just did the initial implementation. Let us first decide if we like the functionality and if yes, I will document and test it.

bkamins