allowing assignments to variables

[pfarndt]

It would be nice to allow assignments (intermediate or at the end) of a chain, such that code like this :

julia> using DataFramesMeta;

julia> df = DataFrame(a = [1, 2]);

julia> @chain df begin 
           @transform(y = :a)
           newdata = _
       end;

julia> newdata
ERROR: UndefVarError: newdata not defined

would work. This could also be very helpful for "debugging".

(@pdeffebach, see also here)

[jkrumbiegel]

That actually works these days, just forgot to close the issue:

julia> @chain begin
           [1, 2, 3]
           sum
           d = _
       end
6

julia> d
6

[pfarndt]

Thanks!