The developed package can be used to generate a spatial population for different
levels of relationships among the dependent and auxiliary variables along with spatially
varying model parameters. A spatial layout is designed as a [0,k-1]x[0,k-1] square region on which observations
are collected at (k x k) lattice points with a unit distance between any two neighbouring points along the horizontal
and vertical axes. For method details see Chao, Liu., Chuanhua, Wei. and Yunan, Su. (2018).