makeAA {nadiv} | R Documentation |
Given a pedigree, the matrix of additive by additive genetic relatedness (AA) among all individuals in the pedigree is returned.
makeAA(pedigree)
pedigree |
A pedigree where the columns are ordered ID, Dam, Sire |
Missing parents (e.g., base population) should be denoted by either 'NA', '0', or '*'.
The function first estimates the A matrix using makeA
, then it
calculates the Hadamard (element-wise) product of the A matrix with itself
(A # A).
a list
:
the AA matrix in sparse matrix form
the log determinant of the AA matrix
the inverse of the AA matrix in sparse matrix form
the three column form of the non-zero elements for the inverse of the AA matrix
makeAA(Mrode2)