OSelm_train.formula     Trains an extreme learning machine with random
                        weights
OSelm_training          Trains an online sequential extreme learning
                        machine with random weights
preProcess              Pre processing function for the training and
                        test data set. Each numeric variable is
                        standardized between -1 and 1 and each
                        categorical variable is coded with a dummy
                        coding.
predict_elm             Prediction function for the ELM model generated
                        with the elm_training() function
