makeA: Creates the additive genetic relationship matrix

In nadiv: Functions to construct non-additive genetic relatedness matrices

Description

This returns the additive relationship matrix in sparse matrix format.

Usage

makeA(pedigree)

Arguments

pedigree

A pedigree where the columns are ordered ID, Dam, Sire

Details

Missing parents (e.g., base population) should be denoted by either 'NA' or '0'.

Uses relfactor function in package pedigreemm. Also, used as a support function to makeD.

Value

Returns A, or the numerator relationship matrix, in sparse matrix form.

Author(s)

[e-mail]

See Also

relfactor, makeD

Examples

 makeA(Mrode2)

Example output

Loading required package: Matrix
6 x 6 sparse Matrix of class "dsCMatrix"
                                           
[1,] 1.00 .     0.5000 0.5000 0.5000 0.2500
[2,] .    1.000 0.5000 .      0.2500 0.6250
[3,] 0.50 0.500 1.0000 0.2500 0.6250 0.5625
[4,] 0.50 .     0.2500 1.0000 0.6250 0.3125
[5,] 0.50 0.250 0.6250 0.6250 1.1250 0.6875
[6,] 0.25 0.625 0.5625 0.3125 0.6875 1.1250

nadiv documentation built on May 2, 2019, 4:55 p.m.