Example usage for org.apache.commons.math3.stat Frequency entrySetIterator

Introduction

In this page you can find the example usage for org.apache.commons.math3.stat Frequency entrySetIterator.

Prototype

public Iterator<Map.Entry<Comparable<?>, Long>> entrySetIterator() 

Source Link

Document

Return an Iterator over the set of keys and values that have been added.

Usage

From source file:de.upb.wdqa.wdvd.processors.statistics.FrequencyUtils.java

public static List<Map.Entry<Comparable<?>, Long>> sortByFrequency(Frequency frequency) {
    Iterator<Map.Entry<Comparable<?>, Long>> iterator = frequency.entrySetIterator();

    List<Map.Entry<Comparable<?>, Long>> list = new ArrayList<Map.Entry<Comparable<?>, Long>>();

    while (iterator.hasNext()) {
        Map.Entry<Comparable<?>, Long> entry = iterator.next();

        list.add(entry);//from  ww w.j  a va  2s  .c  o m
    }

    Comparator<Map.Entry<Comparable<?>, Long>> comparator = new Comparator<Map.Entry<Comparable<?>, Long>>() {

        @Override
        public int compare(Map.Entry<Comparable<?>, Long> arg0, Map.Entry<Comparable<?>, Long> arg1) {
            if (arg0 == null || arg1 == null) {
                throw new NullPointerException();
            }

            return -Long.compare(arg0.getValue(), arg1.getValue());
        }
    };

    Collections.sort(list, comparator);

    return list;
}

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From source file:com.graphhopper.jsprit.core.util.UnassignedJobReasonTracker.java

private String getMostLikely(Frequency reasons) {
    Iterator<Map.Entry<Comparable<?>, Long>> entryIterator = reasons.entrySetIterator();
    int maxCount = 0;
    String mostLikely = null;//  w  w  w.jav  a 2s . co m
    while (entryIterator.hasNext()) {
        Map.Entry<Comparable<?>, Long> entry = entryIterator.next();
        if (entry.getValue() > maxCount) {
            Comparable<?> key = entry.getKey();
            mostLikely = key.toString();
        }
    }
    return mostLikely;
}

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From source file:com.graphhopper.jsprit.core.util.UnassignedJobReasonTrackerTest.java

@Test
public void testFreq() {
    Frequency frequency = new Frequency();
    frequency.addValue("VehicleDependentTimeWindowHardActivityConstraint");
    frequency.addValue("b");
    frequency.addValue("VehicleDependentTimeWindowHardActivityConstraint");

    Iterator<Map.Entry<Comparable<?>, Long>> entryIterator = frequency.entrySetIterator();
    while (entryIterator.hasNext()) {
        Map.Entry<Comparable<?>, Long> e = entryIterator.next();
        System.out.println(e.getKey().toString() + " " + e.getValue());
    }/*from  www. ja  v a  2  s .c  om*/
}

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