R: Add id variables to data frame

id {incadata} | R Documentation

## Add id variables to data frame

### Description

Construct id variable for patient data.

### Usage

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

### Arguments

`x` | data frame
`id` | names of a 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.

[Package incadata version 0.6.4 Index]