For many reasons, it may be convenient to set the default database location to somewhere other than the global default. Users may wish to use a previously downloaded version of the database for reproducibility purposes, store hydat somewhere other than hy_dir().

hy_set_default_db(hydat_path = NULL)



The path to the a HYDAT sqlite3 database file (e.g., hy_test_db)


returns the previous value of hy_default_db.


if (FALSE) { # set default to the test database hy_set_default_db(hy_test_db()) # get the default value hy_default_db() # set back to the default db location hy_set_default_db(NULL) }