It seems transform can modify column names and accepts data.frame
arguments such as chek.names= but neither of these is mentioned in the
help file. For example this is how the ... argument is described.
...: Further arguments of the form ?tag=value?
The Details section does not provide any information from which one
could deduce this either.
transform(BOD[1, ], "x y" = 1)
## Time demand x.y
## 1 1 8.3 1
transform(BOD[1, ], "x y" = 1, check.names = FALSE)
## Time demand x y
## 1 1 8.3 1
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