could not find function "."
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donert commented
weeklyIncidents = DT[,.(Date, year, nVictims)][,week := week(Date)][order(Date)]
Error in eval(expr, envir, enclos) : could not find function "."
I am new to the use of data tables. There are several places where the '.' function is used and they all throw the same error.
donert commented
I got it working. I had to upgrade my version of R. R 3.2.2 seems to have fixed the problem.