Compare IDs between data frames

Compares IDs between two data frames to detect lost rows.

Usage

compare_ids(before, after, .id = ".id")

Arguments

before

Data frame before transformation.

after

Data frame after transformation.

.id

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

Value

A list with:

• lost: IDs present in before but not after

• gained: IDs present in after but not before

• preserved: IDs present in both

Examples

df1 <- add_id(data.frame(x = 1:5))
df2 <- df1[1:3, ]
compare_ids(df1, df2)