Databases are resources which might be costly to load but can be used many times by functions which usually automatically load and retrieve them from the database manager. Each database has a lifetime and will be unloaded automatically upon expiry.
Arguments
- key
Character: the key of the database to load. For a list of available keys see
omnipath_show_db.- param
List: override the defaults or pass further parameters to the database loader function. See the loader functions and their default parameters in
omnipath_show_db. If the database is already loaded with different parameters it will be reloaded with the new parameters only if thereloadoption isTRUE.- reload
Reload the database if
parampassed here is different from the parameters used the last time the database was loaded. If different functions with different parameters access the database repeatedly and request reload the frequent reloads might cost substantial time and resource use.- ...
Arguments for the loader function of the database. These override the default arguments.
Value
An object with the database contents. The exact format depends on the database, most often it is a data frame or a list.