13-09-2016: I replaced the resampling_methods function with the repeated_resampling function
23-12-2017: I modified the xgboost-predict function due to an error and I added the UNLABELED_TEST_DATA parameter in the random_search_resample function, so that I can receive predictions for unlabeled data when I do random search
14-08-2018:
I replaced the elmNN with the elmNNRcpp package
I replaced the tests of the elmNN with those of the elmNNRcpp package
05-02-2020: Updated / Adjusted the files of the package