Look up options for parameters passed to each sourceSource:
Look up options for parameters passed to each source
(character) Data source to get data from, any combination of gbif, ebird, idigibio and/or vertnet. Case doesn't matter. inat is not included here, see that package's help docs.
(character) One of console (print to console) or html (opens help page, if in non-interactive R session, prints help to console).
Opens up the documentation for the function that is used internally within the occ function for each source.
Note that the from parameter is lowercased within the function and is called through match.arg first, so you can match on unique partial strings too (e.g., 'rv' for 'rvertnet').