loadkNNSpeciesLayersValidation: Load kNN species layers from online data repository
In PredictiveEcology/LandR: Landscape Ecosystem Modelling in R

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,
  ...
)

`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`.