Get the USUBJID of subject

Usage

usubjid(obj, id)

Arguments

obj: A NIF object.
id: A subject ID in numeric form.

Value

The USUBJID as character.

Examples

usubjid(examplinib_fe_nif)
#>  [1] "20230004001010002" "20230004001010003" "20230004001010004"
#>  [4] "20230004001010006" "20230004001010007" "20230004001020002"
#>  [7] "20230004001020003" "20230004001020005" "20230004001020006"
#> [10] "20230004001030001" "20230004001030003" "20230004001030004"
#> [13] "20230004001030005" "20230004001030006" "20230004001040001"
#> [16] "20230004001040002" "20230004001040006" "20230004001050001"
#> [19] "20230004001050002" "20230004001050003"