Compare Two Concordance Estimates

Performs a Pepe-Mori type test to compare two concordance estimates (e.g., MZ vs DZ twins). The test evaluates whether the concordance functions differ significantly over time.

Usage

test_conc(conc1, conc2, same.cluster = FALSE)

Arguments

conc1

Concordance estimate of group 1.

conc2

Concordance estimate of group 2.

same.cluster

Logical; if FALSE, groups are assumed independent. If TRUE, estimates are based on the same data (e.g., paired twins).

Value

An object of class "testconc" containing:

test

Matrix with cumulative difference, standard error, z-value, and p-value.

mintime, maxtime

Time range used.

same.cluster

Logical flag.

See also

test_casewise

Author

Thomas Scheike