quass | R Documentation |
Given the vectors of sire and dam, directly return inverse of additive relationship matrix 'A' without creating the 'A' itself. This is a modification of Henderson's method and unlike createAinv.r, this can be used in inbred populations. Reference:
Quass, R. L. 1976. Computing the Diagonal Elements and Inverse of a Large Numerator Relationship Matrix. Biometrics 32:949-953.
quass(s, d)
s |
vector of sires |
d |
vector of dams |
matrix
Unknown parents should be coded as zero. Last modified by Morota on April 2, 2010.
Gota Morota
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