Routines for drawing samples from spatial objects, focused on spatially
balanced algorithms. Draws Halton Iterative Partition (HIP)
(Robertson et al., 2018; ),
Balanced Acceptance Samples (BAS) (Robertson et al., 2013; ),
Generalized Random
Tessellation Stratified (GRTS) (Stevens and Olsen, 2004; ),
Simple Systematic Samples (SSS) and
Simple Random Samples (SRS) from point, line, and polygon resources.
Frames are 'SpatialPoints', 'SpatialLines', or 'SpatialPolygons'
objects from package 'sp'.