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I tried `$`(mtcars,cyl,drop=FALSE), but this threw an error. I know that in practice you would use [ or [[ instead, but I'm curious, can drop=FALSE be passed to $?

J. Mini
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  • @MrFlick Might as well post that as an answer. If it's plain and simply impossible, then so be it. I probably should've checked the `formals` of `$`... – J. Mini Mar 13 '21 at 19:03

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The $ function doesn't have a drop= parameter. While they are used for similar things, the $ function is distinct from the [ function which does have a drop= parameter.

I'm assuming that you are only interested in the case for using $ with data.frames, but there's actually no special data.frame method for $, it just treats the data.frame like a list. And drop= wouldn't make as much sense in the case of a generic list.

MrFlick
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