Bal_XeeXhC              Spatial Variance Component for Balanced Panel
DistMat                 Create Distance Matrix
TimeDist                Temporal Variance Component (Time Dimension)
US_counties_centroids   Centroids of Contiguous US Counties (2017)
XeeXhC                  Spatial Variance Component (X'ee'X)
XeeXhC_Lg               Spatial Variance Component for Large Datasets
compute_conley_lfe      Compute Conley Standard Error for a Single
                        Coefficient
conley_SE               Conley Spatial HAC Variance-Covariance
                        Estimation
coords_as_columns       Extract Coordinates as Columns from an sf
                        Object
covgm_range             Covariogram Range Estimation and Visualization
extract_corr_range      Extract Correlation Range from a Correlogram or
                        Covariogram
gravity_centroid        Weighted Mean Centre (Centre of Gravity)
grid_FE                 Create Spatial Grid Fixed Effects
inverseu_plot_conleyrange
                        Inverse-U Plot of Conley Standard Errors vs.
                        Cutoff Distance
lm_sac                  Linear Model with Spatial Autocorrelation
                        Diagnostics
