Retrieve lineage IDs from a tagged dataset

Returns the lineage_id vector from an lg_df object. Use this instead of accessing the column directly to keep code robust against future internal changes.

Usage

lg_id(data)

Arguments

data

An lg_df from lg_tag().

Value

A character vector of lineage IDs, one per row.

Examples

lg_start()
#> lineager: session started
dm <- data.frame(USUBJID = c("01-001", "01-002"), AGE = c(34L, 52L))
dm_tagged <- lg_tag(dm, dataset_id = "DM")
#> lineager: tagged 'DM' — 2 rows, 2 cols
lg_id(dm_tagged)
#> [1] "DM_0001_01-001" "DM_0002_01-002"