Rdiagnosislist (version 1.4.0)

unique.SNOMEDconcept: Unique vector of SNOMED CT concepts

Description

SNOMEDconcept is an S3 class for vectors of SNOMED concept IDs as 64-bit integers. This function returns a vector containing only unique SNOMEDconcept values.

Usage

# S3 method for SNOMEDconcept
unique(x, ...)

Value

SNOMEDconcept vector with duplicates removed

Arguments

x

SNOMEDconcept vector

...

other variables to pass on to the underlying 'unique' function

See Also

Other SNOMEDconcept functions: as.data.frame.SNOMEDconcept(), c.SNOMEDconcept(), is.SNOMEDconcept(), print.SNOMEDconcept(), union.SNOMEDconcept()

Examples

hf <- SNOMEDconcept('Heart failure', SNOMED = sampleSNOMED())
hf2 <- c(hf, hf)
unique(hf2)