transformConstraints | R Documentation |
transformConstraints
takes a list of matrices with constraints and transforms all the non-zero values to the value desired. The purpose of this function is to make easy the transformation of initial constraints to a fixed-constraint list to be provided to a mixed model fitted with the mmer function.
transformConstraints(list0,value=1)
list0 |
a list of matrices with constraints according to the rules specified in the vsr function (0: not to be estimated, 1: positive, 2:unconstrained, 3:fixed). |
value |
value to be used to replace all the non-zero values in the constraint matrices. |
a list with the modified constraint matrices.
Giovanny Covarrubias-Pazaran
Covarrubias-Pazaran G (2016) Genome assisted prediction of quantitative traits using the R package sommer. PLoS ONE 11(6): doi:10.1371/journal.pone.0156744
The function vsr
to know how to use transformConstraints
in the mmer
solver.
(a <- list(unsm(4), diag(4)))
transformConstraints(a, value=3)
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