GenerateLandcover: GenerateLandcover creates a ascii land cover dataset with a...

In Zabados/LcvGen: LcvGen : Generarting simulated land cover data.

Description

This function uses other functions to create a land cover with the focal habitat haveing a number of patches.

Usage

GenerateLandcover(
  NumberSeeds,
  LCVPath,
  PatchPath,
  runno = NULL,
  MatrixHabs = 10,
  GenExtent = 250,
  FullExtent = 1000,
  BufferFullExtent = 0,
  cover = 0.1,
  DistributionPatches = "Random",
  DistributionSeeds = "Uniform",
  NumberEachMatrixHabs = 1:200,
  MatrixHabsEqualSize = FALSE,
  MatrixPatchDistribution = "Random",
  MarixSeedDistribution = "Uniform"
)

Arguments

NumberSeeds	integer -
LCVPath	character - string of the output path of the land cover ascii
PatchPath	character - string of the output path of the patch ascii
runno	integer - defaults to NULL
MatrixHabs	integer -number of habitats in the matrix
GenExtent	integer - default 250, this is the extent that the land cover is generated at. Can be slow with large values.
FullExtent	integer final extent of the landcover
BufferFullExtent	integer - buffer around the edge of the land cover
cover	floating point between 0 and 1.
DistributionPatches	character - how seed points are distributed to grow the patches. Options are "Random" or "Poisson", "Clustered" or "Thomas", or "Regular", "Strauss" or"Dispersed" and defaults to random.
DistributionSeeds	character - a distribution from which to pick the size of patches from. Opetions are "Gaussian" or"Normal", "Pareto", or the default "Uniform". Uniform gives patches of almost any size and the maximum variation.
NumberEachMatrixHabs	list of numbers - default is 1:200
MatrixHabsEqualSize	boolean - true or false
MatrixPatchDistribution	character - how seed points are distributed to grow the patches. Options are "Random" or "Poisson", "Clustered" or "Thomas", or "Regular", "Strauss" or"Dispersed" and defaults to random.
MarixSeedDistribution	character - a distribution from which to pick the size of patches from. Opetions are "Gaussian" or"Normal", "Pareto", or the default "Uniform". Uniform gives patches of almost any size and the maximum variation.

Value

list of arrays - the list contains two arrays, the "Patches" and "InterestLCV" (land cover).

Examples

   library(raster)
   library(LcvGen)

   NewLandcover <- GenerateLandcover(5, "Lcv5.asc", "Patches5.asc")
   plot(raster(NewLandcover$LCV))
   plot(raster(NewLandcover$Patches))

   NewLandcover <- GenerateLandcover(4, "Lcv5.asc", "Patches5.asc",
                                     DistributionPatches = "Dispersed",
                                     NumberEachMatrixHabs = 4,
                                     MatrixPatchDistribution = "Dispersed")

Zabados/LcvGen documentation built on Oct. 15, 2020, 6:23 a.m.