determine.random: determine.random

In khuggler/Ovis: Tools to Manipulate, Collate, and Analyze BHS Data from Idaho and Wyoming

determine.random

Description

determine number of random locations needed to represent true mean of landscape variables

Usage

determine.random(
  rasterstack,
  poly,
  pts,
  increase.type,
  increment,
  number.iterations,
  seqmin,
  seqmax,
  inc.ratio,
  out.dir
)

Arguments

rasterstack	name of raster or raster stack object to evaluate
poly	spatialpolygonsdataframe to sample random locations from
pts	spatialpointsdataframe of used locations
increase.type	whether to increase proportionally (i.e., percentage) or numerically (i.e., integers)
increment	if increase.type prop a proportion in decimal format (e.g., for 10 percent 0.10) if increase type number indicate number of points to increase at each iteration
number.iterations	number of incremental steps to run through
seqmin	if increase.type number, indicate the minimum number of random locations to test
seqmax	if increase.type number, indicate the maximum number of random locations to test
inc.ratio	Logical. TRUE If you desire the number of random points to be greater than the total number of used points, otherwise FALSE
out.dir	path to folder where plot should be saved

Value

Returns a data.frame with the summarized values, and saves a pdf of plots to out.dir named RandomPoints

khuggler/Ovis documentation built on Nov. 30, 2023, 7:41 p.m.