StepGWR_exponential     StepGWR: a hybrid spatial model that combines
                        the variable selection capabilities of stepwise
                        regression with the predictive power of
                        Geographically Weighted Regression (GWR) model
StepGWR_gaussian        StepGWR: a hybrid spatial model that combines
                        the variable selection capabilities of stepwise
                        regression with the predictive power of
                        Geographically Weighted Regression (GWR) model
