Subset a codelist to only those with a particular route category

Usage

subsetOnRouteCategory(x, cdm, routeCategory, negate = FALSE)

Arguments

x: A codelist.
cdm: A cdm reference to an OMOP CDM dataset. If data is held within a database, the vocabulary tables should be in the same schema as the clinical tables (person, observation period, and so on).
routeCategory: Only codes with the specified route will be returned. If NULL, descendant codes will be returned regardless of route category. Use getRoutes() to find the available route categories.
negate: If FALSE, only concepts with the routeCategory specified will be returned. If TRUE, concepts with the routeCategory specified will be excluded.

Value

The codelist with only those concepts associated with the specified route categories (if negate is FALSE) or the codelist without those concepts associated with the specified route categories (if negate is TRUE).

Examples

# \donttest{
library(CodelistGenerator)
library(omopgenerics)
cdm <- mockVocabRef()
codes <- subsetOnRouteCategory(
              x = newCodelist(list("codes" = c(20,21))),
              cdm = cdm,
              routeCategory = "topical")
#> Warning: ! `codelist` casted to integers.
codes
#> 
#> ── 1 codelist ──────────────────────────────────────────────────────────────────
#> 
#> - codes (1 codes)
# }