- #Etape E et calcul de LLF
- sumLogLLF2 = 0
- for(i in 1:n){
- sumLLF1 = 0
- maxLogGamIR = -Inf
- for(r in 1:k){
- dotProduct = tcrossprod(Y[i,]%*%Rho[,,r]-X[i,]%*%phi[,,r])
- logGamIR = log(Pi[r]) + log(det(Rho[,,r])) - 0.5*dotProduct
- #Z[i] = index of max (gam[i,])
- if(logGamIR > maxLogGamIR){
- Z[i] = r
- maxLogGamIR = logGamIR
- }
- sumLLF1 = sumLLF1 + exp(logGamIR) / (2*pi)^(m/2)
- }
- sumLogLLF2 = sumLogLLF2 + log(sumLLF1)
- }
+ #Etape E et calcul de LLF
+ sumLogLLF2 = 0
+ for(i in 1:n){
+ sumLLF1 = 0
+ maxLogGamIR = -Inf
+ for(r in 1:k){
+ dotProduct = tcrossprod(Y[i,]%*%Rho[,,r]-X[i,]%*%phi[,,r])
+ logGamIR = log(Pi[r]) + log(det(Rho[,,r])) - 0.5*dotProduct
+ #Z[i] = index of max (gam[i,])
+ if(logGamIR > maxLogGamIR){
+ Z[i] = r
+ maxLogGamIR = logGamIR
+ }
+ sumLLF1 = sumLLF1 + exp(logGamIR) / (2*pi)^(m/2)
+ }
+ sumLogLLF2 = sumLogLLF2 + log(sumLLF1)
+ }