getextr: Download distribution data, filter, and merge with climate or...
In rsh249/vegdistmod: Vegetation distribution modeling and spatial informatics

getextr is a function that gets GBIF data and extracts climate or environmental data for each occurrence. This is a whole workflow for distribution data acquisition and value addition that draws on several other functions in vegdistmod including gbif_get and extraction. Parallel option is useful for speeding up data collection for many species when computational resources are available.

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getextr(x, clim = clim, maxrec = 500, schema = "flat",
  rm.outlier = TRUE, alpha = 0.01, factor = 2, nmin = 5,
  parallel = FALSE, nclus = 4)

`x`	A taxon name or list of taxon names. It is sometimes good to test these on the vegdistmod::get_gbif() function first.
`clim`	A raster object of climate or other environmental data to extract from.
`maxrec`	Maximum number of records to download.
`schema`	To be passed to vegdistmod::extraction
`rm.outlier`	To be passed to vegdistmod::extraction
`alpha`	To be passed to vegdistmod::extraction
`factor`	To be passed to vegdistmod::extraction
`nmin`	To be passed to vegdistmod::extraction
`parallel`	TRUE or FALSE. Should this be executed in parallel.
`nclus`	If parallel == TRUE then how many cores should be used? Default is 4.

## Not run: 
abies <- getextr('Abies fraseri', 
clim = clim, maxrec=500, 
schema= 'flat', rm.outlier = TRUE, 
alpha=0.01, factor = 2, nmin = 5, parallel=FALSE, nclus = 4));

## End(Not run)