Calculate the output for a Naive Bayes classifier.

NaiveBayesApplication.java

//Calculate the probability that the given input is in the positive class
public double probability(double in[]){
   double relativepositive=0,relativenegative=0;
   for(int j=0; j<in.length; j++){
      relativepositive += (in[j]-posmean[j])*(in[j]-posmean[j]) / posvariance[j] ;
      relativenegative += (in[j]-negmean[j])*(in[j]-negmean[j]) / negvariance[j] ;
   }
   relativepositive = positives*Math.exp(0.5*relativepositive) ;
   relativenegative = negatives*Math.exp(0.5*relativenegative) ;   
   return relativepositive / (relativepositive + relativenegative) ;
}