mahalDistCens | R Documentation |
Returns the squared Mahalanobis distance from a fitted SMN-CLMM. Censored values are imputed using their conditional expectation from the fitting algorithm.
mahalDistCens(object)
object |
An object inheriting from class |
An object of class mahalDistCens
containing the Mahalanobis distance.
Fernanda L. Schumacher, Larissa A. Matos, Victor H. Lachos and Katherine L. Valeriano
Schumacher, F. L., Lachos, V. H., and Matos, L. A. (2021). Scale mixture of skew-normal linear mixed models with within-subject serial dependence. Statistics in Medicine 40(7), 1790-1810.
Zeller, C. B., Labra, F. V., Lachos, V. H. & Balakrishnan, N. (2010). Influence analyses of skew-normal/independent linear mixed models. Computational Statistics & Data Analysis, 54(5).
smn.clmm
, plot.mahalDistCens
nj1 = 5; m = 30
time = rep(1:nj1, times=m)
groups = as.factor(rep(1:m, each=nj1))
dat1 = rsmsn.clmm(time, groups, cbind(1,time), rep(1,m*nj1), sigma2=0.7,
D=0.5*diag(1), beta=c(1,2), depStruct="CS", phi=0.4)
# Estimation
fm1 = smn.clmm(dat1, formFixed=y~x, groupVar="ind", depStruct="CS", ci="ci",
lcl="lcl", ucl="ucl", control=lmmControl(max.iter=30))
distance = mahalDistCens(fm1)
plot(distance, level=0.95, nlabels=2)
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