Options can be defined using name = value. Valid options are:
reset: ala_config("reset") will reset the options to their
default values
caching string: caching can be
"on" (results will be cached, and any cached results will be re-used),
"refresh" (cached results will be refreshed and the new results stored
in the cache), or
"off" (no caching, default).
cache_directory string: the directory to use for the cache.
By default this is a temporary directory, which means that results will
only be cached
within an R session and cleared automatically when the user exits R.
The user may wish to set this to a non-temporary directory for
caching across sessions. The directory must exist on the file system.
verbose logical: should ALA4R give verbose output to assist
debugging? (default = FALSE)
warn_on_empty logical: should a warning be issued if a request
returns an empty result set? (default = FALSE)
user_agent string: the user-agent string used with all web requests
to the ALA servers.
Default = "ALA4R" with version number
text_encoding string: text encoding assumed when reading cached
files from local disk (default = "UTF-8")
download_reason_id numeric or string: the "download reason" required
by some ALA services, either as a numeric ID (currently 0–11)
or a string (see ala_reasons() for a list of valid ID codes and
names). By default this is NA. Some ALA services require a valid
download_reason_id code, either specified here or directly to the
associated R function.
Value
For ala_config(), a list of all options. When ala_config(...) is
called with arguments, nothing is returned but the configuration is set.
