Nothing
u.genv <- function(X, Y, Z, alpha = 0.01) {
ZZ <- as.factor(Z)
a <- dim(Y)
n <- a[1]
r <- a[2]
c <- ncol(X)
p <- nlevels(ZZ)
if (n <= c){
print("This works when p < n")
skip <- 1
}else{
skip <- 0
}
if(skip == 0){
paranum = loglik.seq <- c()
for (u in 0 : r){
loglik.seq[u + 1] <- genv(X, Y, Z, u, asy = F, fit = F)$loglik
paranum[u + 1] <- p * r + p * u * c + u * (r - u) + p * u * (u + 1)/2 + (r - u)*(r - u + 1)/2
}
aic.seq <- -2 * loglik.seq + 2 * paranum
bic.seq <- -2 * loglik.seq + log(n) * paranum
u.aic <- which.min(aic.seq) - 1
u.bic <- which.min(bic.seq) - 1
lrt.test <- stats::pchisq(2 * (loglik.seq[r + 1] - loglik.seq[1:r]),
paranum[r + 1] - paranum[1:r], lower.tail = F)
if (any(lrt.test > alpha)) {
u.lrt <- which(lrt.test > alpha)[1] - 1
}
else {
u.lrt <- r
}
return(list(u.aic = u.aic, u.bic = u.bic, u.lrt = u.lrt,
loglik.seq = loglik.seq, aic.seq = aic.seq, bic.seq = bic.seq))
}
}
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