pdeffebach

Good catch!

Feels connected to #3875 if we are worried about width. I would also add that this feature interests me a lot. Putting stuff in multiple sub-directories (src, data, output, etc)...

You probably want `isapprox` (a built-in Julia function) ``` isapprox(x, y; atol::Real=0, rtol::Real=atol>0 ? 0 : √eps, nans::Bool=false[, norm::Function]) Inexact equality comparison. Two numbers compare equal if their relative distance...

Is the documentation of the package not sufficient for your needs? I'm not sure I see the value of a single "cheatsheet" when the documentation exists.

``` df = DataFrame(rand(5,5)) df[:gender] = ["m", "m", "m", "f", "f"] gd = groupby(df, :gender) ``` I don't get how broadcasting works with grouped data frames. I was under the...

Using `by` is a bit weird too ``` > by(df, :gender, describe) │ Row │ gender │ variable │ mean │ min │ median │ max │ nunique │ nmissing...

`map(describe, df)` works fine, but for some reason it does some extra printing of each subdataframe. not sure why it does this.

### R The only solution I could find for R is to use a `do` command. Maybe this is better with `purrr` but I've actually never taken the time to...

This is a good idea. And something I will work to implement. I think that there are some changes I want to make before this, since grouped operations can be...

I'm going to implement this: ``` function describe(g::GroupedDataFrame; kwargs...) des = combine(map(d -> describe(d, kwargs...), g)) # a dataframe groupby(des, g.cols) # group it again end ``` Though it isn't...