rnoaa caching

Manage data caches

Details

To get the cache directory for a data source, see the method x$cache_path_get()

cache_delete only accepts 1 file name, while cache_delete_all doesn't accept any names, but deletes all files. For deleting many specific files, use cache_delete in a lapply() type call

Note that cached files will continue to be used until they are deleted. It's possible to run into problems when changes happen in your R setup. For example, at least one user reported changing versions of this package and running into problems because a cached data file from a previous version of rnoaa did not work with the newer version of rnoaa. You should occasionally delete all cached files.

Useful user functions

Assuming x is a HoardClient class object, e.g., lcd_cache

• x$cache_path_get() get cache path

• x$cache_path_set() set cache path

• x$list() returns a character vector of full path file names

• x$files() returns file objects with metadata

• x$details() returns files with details

• x$delete() delete specific files

• x$delete_all() delete all files, returns nothing

Caching objects for each data source

• isd()/isd_stations(): isd_cache

• cpc_prcp(): cpc_cache

• arc2(): arc2_cache

• lcd(): lcd_cache

• bsw(): bsw_cache

• ersst(): ersst_cache

• tornadoes(): torn_cache

• ghcnd()/ghcnd_search(): ghcnd_cache

• se_data()/se_files(): stormevents_cache

See also

rnoaa_options() for managing whether you see messages about cached files when you request data