Assess k-anonymity over a set of quasi-identifier columns

Cross-tabulates the quasi-identifier columns and reports how many records fall in combinations (equivalence classes) smaller than k. NA is treated as a distinct level so that missing values cannot mask a small cell.

Usage

assess_kanonymity(data, qi_cols, k = 5)

Arguments

data

A data frame.

qi_cols

Character vector of quasi-identifier column names.

k

Minimum acceptable cell size (default 5).

Value

A list with no_qi (logical), smallest_cell (integer), n_below, pct_below, and worst_cells (a tibble of the smallest combinations and their counts).