Extend IDs to new rows

Adds IDs to rows where the ID column is NA, preserving existing IDs. Useful after binding new data to an existing dataset with IDs.

Usage

extend_id(.data, .id = ".id")

Arguments

.data

A data frame with an ID column (possibly with NAs).

.id

Column name for IDs (default: ".id").

Value

Data frame with IDs filled in for NA rows.

Examples

# Original data with IDs
old <- add_id(data.frame(x = 1:3))

# New data without IDs
new <- data.frame(.id = NA_character_, x = 4:5)

# Combine and extend
combined <- dplyr::bind_rows(old, new)
extend_id(combined)