R Under development (unstable) (2024-04-29 r86495 ucrt) -- "Unsuffered Consequences"
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> # TODO: Add comment
> #
> # Author: iovleff
> #-----------------------------------------------------------------------
> library(MixAll)
Loading required package: rtkore
Loading required package: Rcpp

Attaching package: 'rtkore'

The following object is masked from 'package:Rcpp':

    LdFlags

> data(iris)
> 
> gamma_model <- clusterGamma( iris[1:4], nbCluster = 3, models = c("gamma_pk_ajk_bjk")
+                            , strategy = clusterFastStrategy())
> 
> data<-gamma_model@component@data
> nbCluster <- gamma_model@nbCluster
> prop <- gamma_model@pk
> shape <- gamma_model@component@shape
> scale <- gamma_model@component@scale
> 
> nbSample <- nrow(data)
> nbVariable <- ncol(data)
> 
> f <-vector(length=nbSample)
> lnComp <- vector(length=nbCluster)
> 
> for (i in 1:nbSample)
+ {
+   for (k in 1:nbCluster)
+   { lnComp[k] = log(prop[k]) + sum(dgamma(data[i,], shape=shape[k,], scale=scale[k,],log=TRUE)); }
+   lmax <- max(lnComp)
+ 
+   for (k in 1:nbCluster)
+   { lnComp[k] =  lnComp[k] -lmax;}
+ 
+   f[i] = log(sum(exp(lnComp))) + lmax;
+ }
> if (abs(sum(f) - gamma_model@lnLikelihood) < 1.e-15)
+ { print ("clusterGammaLikelihood failed")
+ } else{ print ("clusterGammaLikelihood successful")  }
[1] "clusterGammaLikelihood successful"
> 
> proc.time()
   user  system elapsed 
   0.73    0.10    0.82