Nothing

```
balZav <- function(x){
D <- ncol(x)
Z.av <- matrix(NA,ncol=2,nrow=nrow(x))
p1 <- sqrt(D-1+sqrt(D*(D-2)))/sqrt(2*D)
#if(D==2) stop average calculation...
if(D==3){
p2 <- x[,3]
}
else{
p2 <- apply(x[,3:D],1,prod)
}
p3 <- (sqrt(D-2)+sqrt(D))/(sqrt(D-2)*(D-1+sqrt(D*(D-2))))
p4 <- 1/(D-1+sqrt(D*(D-2)))
Z.av[,1] <- p1*(log(x[,1]/(x[,2]^p4 * p2^p3)))
Z.av[,2] <- p1*(log(x[,2]/(x[,1]^p4 * p2^p3)))
return(Z.av)
}
```

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