Nothing
m.step <- function(X,modelname, z, mtol=1e-10, mmax=10){
n = nrow(X)
p = ncol(X)
G = ncol(z)
sigmar = matrix(0, nrow=G, ncol=p^2 )
invsigmar = matrix(0, nrow=G, ncol=p^2 )
mu = matrix(0, nrow = G, ncol = p)
PXgood <- matrix(0, nrow=n, ncol=G)
temp_em<-.C("mstepU",
as.integer(n), as.integer(p), as.integer(G), as.double(z), #1
as.double(sigmar), as.double(invsigmar), as.double(mu), as.double(mtol), #2
as.integer(mmax), as.double(X), as.character(modelname), as.double(PXgood),#3
PACKAGE="ContaminatedMixt")
Sigma = array(temp_em[[5]], dim= c(p,p,G),dimnames = list(paste("X.",1:p,sep=""),paste("X.",1:p,sep=""),paste("group ",1:G,sep="")))
invSigma = array(temp_em[[6]], dim= c(p,p,G),dimnames = list(paste("X.",1:p,sep=""),paste("X.",1:p,sep=""),paste("group ",1:G,sep="")) )
mu = matrix(temp_em[[7]], nrow=p, ncol=G, byrow=TRUE,dimnames=list(paste("X.",1:p,sep=""),paste("group ",1:G,sep="")))
px = matrix(temp_em[[12]], nrow = n, ncol = G)
return(list(mu=mu,Sigma=Sigma,invSigma=invSigma,px=px))
}
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