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Date of Birth Comparison

Source: R/cl_domain.R
cl_dob.Rd

A pre-built domain comparison for dates of birth. Combines exact matching, a Damerau-Levenshtein string check for transposed digits, and configurable date-difference levels to handle common errors.

Usage

cl_dob(
  thresholds = list(months(1), years(1), years(10)),
  term_frequency = FALSE
)

Arguments

thresholds

A list of unit-tagged threshold values created by days(), months(), or years(), ordered from strictest to most lenient. Defaults to list(months(1), years(1), years(10)).

term_frequency

Logical. If TRUE, adjust match weights by date-of-birth frequency at the highest comparison level. Defaults to FALSE.

Value

A comparison-level object for use in il_compare().

Examples

il_spec() |>
  il_compare(dob, cl_dob())
#> Linkage Specification
#>   Comparisons (1):
#>     dob : levels
#>   Blocking rules: (none)

# Custom thresholds: within 7 days, 6 months, 2 years
il_spec() |>
  il_compare(dob, cl_dob(thresholds = list(days(7), months(6), years(2))))
#> Linkage Specification
#>   Comparisons (1):
#>     dob : levels
#>   Blocking rules: (none)