CHM                     Canopy Height Model from NASA Goddard's LiDAR
                        Hyperspectral and Thermal (G-LiHT)
spConjNNGP              Function for fitting univariate Bayesian
                        conjugate spatial regression models
spNNGP                  Function for fitting univariate Bayesian
                        spatial regression models
spPredict               Function for prediction at new locations using
                        'spNNGP' models.
