Load kNN species layers from online data repository — loadkNNSpeciesLayersValidation • LandR

Downloads the 2011 kNN species cover layers from the Canadian Forestry Service, National Inventory System, for validation.

loadkNNSpeciesLayersValidation(
  dPath,
  rasterToMatch,
  studyArea,
  sppEquiv,
  knnNamesCol = "KNN",
  sppEquivCol,
  thresh = 1,
  url,
  ...
)

Arguments

dPath	path to the data directory
rasterToMatch	A `RasterLayer` objects to use as the template for all subsequent raster operations (i.e., the one used throughout the simulation).
studyArea	A `SpatialPolygons*` object used as the principle study region, passed to `prepInputs`.
sppEquiv	table with species name equivalencies between the kNN and final naming formats. See `data("sppEquivalencies_CA", "LandR")`. Only necessary if `mixedType == 2`. If not provided and `mixedType == 2`, will attempt to use `data("sppEquivalencies_CA", "LandR")`.
knnNamesCol	character string indicating the column in `sppEquiv` containing kNN species names. Default `"KNN"` for when `sppEquivalencies_CA` is used.
sppEquivCol	the column name to use from `sppEquiv`. Only necessary if `mixedType == 2`. If not provided and `mixedType == 2`, will attempt to use "Boreal".
thresh	the minimum number of pixels where the species must have `biomass > 0` to be considered present in the study area. Defaults to 1.
url	the source url for the data, passed to `prepInputs`
...	Additional arguments passed to `Cache` and `equivalentName`.

A raster stack of percent cover layers by species.