unique.SNOMEDconcept {Rdiagnosislist}

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 class 'SNOMEDconcept'
unique(x, ...)

Arguments

x

SNOMEDconcept vector

...

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

Value

SNOMEDconcept vector with duplicates removed

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)