Hi there, I am using the rbga.bin function from the "genalg"-package. There I am searching for a way to print the number of the iteration within the monitor function. My monitor function looks like this: monitor <- function(obj) { minEval = min(obj$evaluations); print(length(obj$population[obj$evaluations == minEval])) print(paste("Best eval: ", minEval)) # plot( obj, type="hist" ) plot( obj$evaluations ) } I tried to print the variable "iter" which I found in the function code of rbga.bin, but unfortunately it didn't work. How can I get to iteration number (for example to print in the title of my plot)? Thanks for our help. Markus