incadata (version 0.5.3)

id: Add id variables to data frame

Description

Make sure that an incadata object has an id identifying the patient.

Usage

id(x, id = c("persnr", "pnr", "pat_id", "pn", "id"), ignore.case = TRUE)

Arguments

x

data.frame

id

names of possible id variable found in x

ignore.case

should name matching be done regardless of character case?

Value

Character variable with either the first name from id found in x or rownames(x) if no named column found.