## ----setup, echo=TRUE, include=FALSE------------------------------------------
library(knitr)


## ----getData------------------------------------------------------------------
dir.create('data', showWarnings = FALSE)
if (!file.exists('data/rs/samples.rds')) {
	download.file('https://biogeo.ucdavis.edu/data/rspatial/rsdata.zip', dest = 'data/rsdata.zip')
	unzip('data/rsdata.zip', exdir='data')
}