I am used to removing columns using A <- within(A, rm(column)) However this stopped working:
> A <- data.table(a=1:10, b=11:20) > within(A, rm(a)) Error in within.data.table(A, rm(a)) : Can only assign one column at a time currently via within In addition: Warning message: In rm(a) : object 'a' not found transform(A, a=NULL) doesn't work either. As a digression, is there a better way to drop a number of columns? A[, -col] doesn't work; A[, -"col", with=F] either. I have the latest version from CRAN I believe. Thanks Timothee _______________________________________________ datatable-help mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help
