DMTL                    Distribution Mapping based Transfer Learning
EN_predict              Predictive Modeling using Elastic Net
RF_predict              Predictive Modeling using Random Forest
                        Regression
SVM_predict             Predictive Modeling using Support Vector
                        Machine
confined                Restrict data in a given interval
dist_match              Distribution Matching for Source and Reference
                        Datasets
estimate_cdf            Estimate Cumulative Distribution
match_func              Estimate Inverse Mapping
norm01                  Normalize vector in [0, 1]
norm_data               Normalize matrix per column in [0, 1]
performance             Evaluate Regression Model Performance using
                        Various Metrics
zscore                  Standardize matrix per column
