X                       Input data X
X.3D                    Input data X.3D
lars.ss                 Spatial scale least angle regression (LARS)
lasso.ss                Spatial scale lasso
spselect-package        Selecting spatial scale of area-level
                        covariates in regression models
stagewise.ss            Spatial scale incremental forward stagewise
                        regression
stepwise.ss             Spatial scale forward stepwise regression
y                       Response data y
