Nothing
Sigma_Estimation <-
function(X){
matrix_cor=cor(X)
dist_cor <- dist(matrix_cor)
#dist_cor <- as.dist(1-abs(matrix_cor))
p <- ncol(matrix_cor)
fit_clust <- hclust(dist_cor)
groups <- cutree(fit_clust, k=2)
group1 <- which(groups==1)
group2 <- which(groups==2)
M1 <- matrix_cor[group1, group1]
M2 <- matrix_cor[group2,group2]
M3 <- matrix_cor[-group1, -group2]
est_alpha1 <- mean(M1 -diag(diag(M1)))
est_alpha3 <- mean(M2 -diag(diag(M2)))
est_alpha2 <- mean(M3)
New_cor <- matrix(0, nrow = p, ncol = p)
New_cor[group1, group1] <- est_alpha1
New_cor[group2, group2] <- est_alpha3
New_cor[-group1, -group2] = New_cor[-group2, -group1] = est_alpha2
diag(New_cor) <- rep(1,p)
return(list(mat=New_cor, alpha=c(est_alpha3,est_alpha2,est_alpha1), group_act=group2))
}
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.