These functions help search for mappings between an a concept and a Metathesaurus identifier in the MRCONSO Table. All queries are cached using the R.cache package for quicker retrieval of the more computationally expensive searches.
search_string( conn, concept, split = " ", schema = "mth", match_case = TRUE, cache_only = FALSE, skip_cache = FALSE, override_cache = FALSE )
| conn | Postgres connection |
|---|---|
| concept | Concept to be searched |
| split | Regular expression to split the concept on to generate words for this style of search. Defaults to a space. |
| schema | Metathesaurus schema |
| match_case | If TRUE, both the MRCONSO STR column and the `concept` argument are converted to lowercase. |
| cache_only | If TRUE, only the cache is loaded and database querying is skipped. If a cache did not exist for the query, a NULL will be returned. |
| skip_cache | If TRUE, the cache is skipped altogether. The database is directly queried and the resultset is not cached. |
| override_cache | If TRUE, the cache is not loaded, the database is directly queried and the resultset is cached, overwriting any existing cache that may have been present. |
Dataframe of 0 or more rows of all the fields in the MRCONSO Table.
A 'String' style of search splits the concept into a vector of length 1 or greater based on the `split` argument. Seaches of this style will return all matches where all the results of the split were present.
Other search mrconso:
mrconso_search_functions,
search_exact(),
search_like()