Scikit-learn: How To Calculate Root-mean-square Error (rmse) In Percentage?

I have a dataset (found in this link: https://drive.google.com/open?id=0B2Iv8dfU4fTUY2ltNGVkMG05V00) of the following format. time X Y 0.000543 0 10 0.000575 0 10 0.041

Solution 1:

Your implementation of calculate_mape is not working because you are expecting the check_arrays function, which was removed in sklearn 0.16. check_array is not what you want.

This StackOverflow answer gives a working implementation.