unsm creates a square matrix with ones in the diagonals and 2's in the off-diagonals to quickly specify an unstructured constraint in the Gtc argument of the vs function.
Usage
unsm(x, reps=NULL)
Arguments
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.
Value
$res
a matrix or a list of matrices with the constraints to be provided in the Gtc argument of the vs function.
References
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
See Also
The function vs to know how to use unsm in the mmer solver.