Data table error could not find function “.”

Question

I am trying to run the following piece of code. Whenever I try to run the code I get the following error: Error in eval(expr, envir, enclos) : could not find function

Answer 1

See this SO question.

Make mtcarsDT as data.table object by doing

mtcarsDT <- setDT(mtcars) and proceed from there.

Hope it works!