A simple interface for accessing exoplanet data. At the bare minimum, a table name is required. Tables names are documented in the `tableinfo` dataset.
exoplanets(table, columns = NULL, limit = NULL, format = "csv")A table name, see `tableinfo`.
A vector of valid column names, by default will return all default columns, see `tableinfo`.
Number of rows to return. If NULL, returns all data in the table.
Desired format, either csv, tsv, or json.
A data.frame if format="csv" or format="tsv".
A list if format="json".
At one time, this package used the Exoplanet Archive Application Programming Interface (API). Since then, a handful of tables have been transitioned to the Table Access Protocol (TAP) service. More tables will be transitioned to TAP and as such, this package only supports queries from TAP. For more information, you can read https://exoplanetarchive.ipac.caltech.edu/docs/exonews_archive.html#29April2021.
tableinfo
if (interactive()) {
# request all default columns from the `ps` table
exoplanets("ps")
# request the planet name and discovery method from the `ps` table
exoplanets("ps", c("pl_name", "discoverymethod"))
# request the first 5 rows from the `keplernames` table
exoplanets("keplernames", limit = 5)
# request in json format (returns list)
exoplanets("ps", c("pl_name", "discoverymethod"), format = "json")
}