search for: pi_add

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2010 Mar 27
1
R runs in a usual way, but simulations are not performed
...gma,i) { crossprod(solve(sigma),crossprod(dsigma.dalphai_MIX(sigma,i),solve(sigma))) } sigmaDERIVisigma_EXP <- function(sigma,i) { crossprod(solve(sigma),crossprod(dsigma.dalphai_EXP(sigma,i),solve(sigma))) } # zav?dza pi, qij, rij (iba pre zmie?an? a multiplikat?vny model heteroskedasticity) pi_ADD <- function(sigma,i) -1*crossprod(x,crossprod(sigmaDERIVisigma_ADD(sigma,i),x)) pi_MIX <- function(sigma,i) -1*crossprod(x,crossprod(sigmaDERIVisigma_MIX(sigma,i),x)) pi_EXP <- function(sigma,i) -1*crossprod(x,crossprod(sigmaDERIVisigma_EXP(sigma,i),x)) qij_ADD <- function(sigma,i,j) {...