package ca.pfv.spmf.test;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import ca.pfv.spmf.algorithms.frequentpatterns.apriori_rare.AlgoAprioriRare;
import ca.pfv.spmf.patterns.itemset_array_integers_with_count.Itemsets;
/**
* Example of how to use the APRIORI RARE algorithm, from the source code.
* @author Philippe Fournier-Viger (Copyright 2008)
*/
public class MainTestAprioriRare_saveToMemory {
public static void main(String [] arg) throws IOException{
// Loading a binary context
String inputFilePath = fileToPath("contextZart.txt");
String outputFilePath = null;
// Note that we set the output file path to null because
// we want to keep the result in memory instead of saving them
// to an output file in this example.
// the threshold that we will use:
double minsup = 0.6;
// Applying the APRIORI-Inverse algorithm to find sporadic itemsets
AlgoAprioriRare apriori2 = new AlgoAprioriRare();
// apply the algorithm
Itemsets patterns = apriori2.runAlgorithm(minsup, inputFilePath, outputFilePath);
int databaseSize = apriori2.getDatabaseSize();
patterns.printItemsets(databaseSize); // print the result
apriori2.printStats();
}
public static String fileToPath(String filename) throws UnsupportedEncodingException{
URL url = MainTestAprioriRare_saveToMemory.class.getResource(filename);
return java.net.URLDecoder.decode(url.getPath(),"UTF-8");
}
}