R package SDraw: Spatially Balanced Sample Draws for Spatial Objects. Routines for drawing samples, focusing on spatially balanced algorithms. Draws Halton Lattice (HAL), Balanced Acceptance Samples (BAS), Generalized Random Tesselation Stratified (GRTS), 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’.

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