[R] The "$" operator and vectors

[Gustaf Rydevik]

Hi all,

I've run into a slightly illogical (to me) behaviour with the "$"
subsetting function.

consider:
> Test
  A B
1 1 Q
2 2 R

> Test$A
[1] 1 2

> vector<-"A"
> Test$vector
NULL

> Test$"A"
[1] 1 2

> Test[,vector]
[1] 1 2


Is there a reason for the $ operator not evaluating the vector before executing?

best,

Gustaf


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Gustaf Rydevik, M.Sci.
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