[Rd] subset data.frame at C level

[Morgan Morgan]

Hi,

Hope you are well.

I was wondering if there is a function at C level that is equivalent to
mtcars$carb or .subset2(mtcars, "carb").

If I have the index of the column then the answer would be VECTOR_ELT(df,
asInteger(idx)) but I was wondering if there is a way to do it directly
from the name of the column without having to loop over columns names to
find the index?

Thank you
Best regards
Morgan

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