The following code crashes after about 300 iterations on my x86_64-w64-mingw32 machine on R 3.5.2 --vanilla. Others have duplicated this (see https://github.com/tidyverse/magrittr/issues/190 if necessary), but I don't know how machine/OS-dependent it may be. If it doesn't crash for you, please try increasing the length of the x vector.
Substituting the commented-out line for the one below it works correctly (prints out 1:1000 and ends normally) every time. x <- 1:200000 y <- rep(letters[1:5], length(x) / 5L) for (i in 1:1000) { # x[y == 'a'] <- x[y == 'b'] x <- `[<-`(x, y == 'a', x[y == 'b']) cat(i, '') } cat('\n') The point of using this syntax is to make it work better with pipes, but the errors occur without pipes or magrittr. Thank you for your help! ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel