map_ancestors {purgeR}

Map ancestors

Description

Creates a logical matrix that indicates whether an individual i (in columns) is ancestor of other j (in rows) For example, matrix[, 1] will indicate descendants of id = 1 And matrix[1, ] indicates ancestors of id = 1

Usage

map_ancestors(ped, idx)

Arguments

ped

A dataframe containing the pedigree. Individual (id), maternal (dam), and paternal (sire) identities are mandatory columns.

idx

Index of ancestors to map

Value

A logical matrix.