## ----setup, include=FALSE-----------------------------------------------------
knitr::opts_chunk$set(echo = TRUE)

## ----eval=FALSE---------------------------------------------------------------
# npn_download_[NAME OF DATA TYPE] (
#   request_source = [NULL]
#   year =  [NULL]
#   species_ID = [NULL]
# )

## ----eval=FALSE---------------------------------------------------------------
# species <- npn_species()

## ----eval=FALSE---------------------------------------------------------------
# species[species$common_name=="red maple",]

## ----eval=FALSE---------------------------------------------------------------
# npn_stations_with_spp (3)