Example usage for java.util DoubleSummaryStatistics getCount

Introduction

In this page you can find the example usage for java.util DoubleSummaryStatistics getCount.

Prototype

public final long getCount() 

Source Link

Document

Return the count of values recorded.

Usage

From source file:Main.java

public static void main(String[] args) {
    DoubleSummaryStatistics stats = new DoubleSummaryStatistics();
    stats.accept(100.0);//from  ww  w.j a v  a 2 s. co  m
    stats.accept(300.0);
    stats.accept(230.0);
    stats.accept(532.0);
    stats.accept(422.0);

    long count = stats.getCount();
    double sum = stats.getSum();
    double min = stats.getMin();
    double avg = stats.getAverage();
    double max = stats.getMax();

    System.out.printf("count=%d, sum=%.2f,  min=%.2f,  average=%.2f, max=%.2f%n", count, sum, min, max, avg);
}

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From source file:org.apache.metron.indexing.dao.metaalert.MetaScores.java

public MetaScores(List<Double> scores) {
    // A meta alert could be entirely alerts with no values.
    DoubleSummaryStatistics stats = scores.stream().mapToDouble(a -> a).summaryStatistics();
    metaScores.put("max", stats.getMax());
    metaScores.put("min", stats.getMin());
    metaScores.put("average", stats.getAverage());
    metaScores.put("count", stats.getCount());
    metaScores.put("sum", stats.getSum());

    // median isn't in the stats summary
    double[] arr = scores.stream().mapToDouble(d -> d).toArray();
    metaScores.put("median", new Median().evaluate(arr));
}

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