I am modelling the number of pages generated by users on my homepage.
I tried a couple of models using Poisson and Negative Binomial distributions, with randomForest (mobForest).
However, I am unsure about the appropriate way of measuring the accuracy of my model on the test set. Are root mean square error (RMSE) and root mean square logarithmic error (RMLSE) proper measures here?
If not, what is the right way of doing that?