Stratify a codelist by dose form.

Usage

stratifyByDoseForm(
  x,
  cdm,
  nameStyle = "{codelist_name}_{dose_form}",
  keepOriginal = 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).
nameStyle: Naming of the new codelists, use {codelist_name} to include the codelist name and {dose_form} to include the dose form name.
keepOriginal: Whether to keep the original codelist (TRUE) or just return the stratified ones (FALSE).

Value

The codelist with the required stratifications, as different elements of the list.

Examples

# \donttest{
library(CodelistGenerator)

cdm <- mockVocabRef()

codes <- newCodelist(list("codes" = c(10L, 20L, 21L)))
new_codes <- stratifyByDoseForm(x = codes,
                                cdm = cdm,
                                keepOriginal = TRUE)
new_codes
#> 
#> ── 4 codelists ─────────────────────────────────────────────────────────────────
#> 
#> - codes (3 codes)
#> - codes_injection (1 codes)
#> - codes_nasal_powder (1 codes)
#> - codes_topical_liquefied_gas (1 codes)
# }