subsetOnDoseUnit: Subset a codelist to only those with a particular dose unit.

In CodelistGenerator: Identify Relevant Clinical Codes and Evaluate Their Use

Subset a codelist to only those with a particular dose unit.

Description

Subset a codelist to only those with a particular dose unit.

Usage

subsetOnDoseUnit(x, cdm, doseUnit, negate = FALSE)

Arguments

x	A codelist.
cdm	A cdm reference via CDMConnector.
doseUnit	Only codes with the specified dose unit will be returned. If NULL, descendant codes will be returned regardless of dose unit Use 'getDoseUnit()' to see the available dose units.
negate	If FALSE, only concepts with the dose unit specified will be returned. If TRUE, concepts with the dose unit specified will be excluded.

Value

The codelist with only those concepts associated with the dose unit (if negate = FALSE) or codelist without those concepts associated with the dose unit(if negate = TRUE).

Examples

library(CodelistGenerator)
cdm <- mockVocabRef()
codes <- subsetOnDoseUnit(x = list("codes" = c(20,21)),
                          cdm = cdm,
                          doseUnit = c("milligram"))

codes

CodelistGenerator documentation built on April 11, 2025, 5:51 p.m.