GWRLASSO_exponential    GWRLASSO: a hybrid model that uses the LASSO
                        model for important variable selection and GWR
                        model with exponential kernel for prediction at
                        an unknown location based on the selected
                        variables.
GWRLASSO_gaussian       GWRLASSO: a hybrid model that uses the LASSO
                        model for important variable selection and GWR
                        model with gaussian kernel for prediction at an
                        unknown location based on the selected
                        variables.
