fixed indication matrix
fixm creates a square matrix with 3's in the diagnals and off-diagonals to quickly specify a fixed constraint in the Gtc argument of the vs function.
fixm(x, reps=NULL)
x |
integer specifying the number of traits to be fitted for a given random effect. |
reps |
integer specifying the number of times the matrix should be repeated in a list format to provide easily the constraints in complex models that use the ds(), us() or cs() structures. |
a matrix or a list of matrices with the constraints to be provided in the Gtc argument of the vs function.
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
fixm(4) fixm(4,2)
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