//setup HDP parameters(alpha, beta, gamma, initialTopics)
HDP hdp = new HDP(1.0, 0.1, 1.0, 10);
hdp.initialize(instances);
//set number of iterations, and display result or not
hdp.estimate(2000);
//get topic distribution for first instance
double[] distr = hdp.topicDistribution(0);
//print out
for(int j=0; j<distr.length ; j++){