unstructured covariance structure
us creates an unstructured covariance structure for specific levels of the random effect.
us(x)
x |
vector of observations for the random effect. |
a list with the provided vector and the variance covariance structure expected for the levels of the random effect.
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
x <- as.factor(c(1:5,1:5,1:5));x us(x)
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