sgsR v1.3.1
sgsR 1.3.1
fixed - sample_systematic() added random translation to sampling grid to ensure unbiased sampling.
sgsR 1.3.0
new - sample_existing() has been added. This algorithm sub-samples and existing sample using internal latin hypercube sampling. Constraints in the form of the cost parameter akin to sample_clhs() exist. Sub-sampling can be performed on existing samples alone, or using population level mraster distributions.
new - mask_existing() - internal function for masking exising samples using access buffers.
sgsR 1.2.1
fixed - sample_systematic() bug where cellsize values that caused no samples to intersect with the raster would cause extract_metrics() to provide an error about existing not having any samples. Added a check for intersection and corresponding error message.
enhancement - Added quiet to extract_metrics() & extract_strata() to allow internal use without messages.