pybot.math.SetOfDoubles.java Source code

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Here is the source code for pybot.math.SetOfDoubles.java

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/*
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package pybot.math;

import java.io.Serializable;
import static java.lang.Math.*;
import org.apache.commons.lang3.ArrayUtils;

/**
 *
 * @author Brian Chau
 */
public class SetOfDoubles implements Serializable {

    private String setName = "";
    private Double[] set;

    private int length;
    private Double min, max, range, sum, average, variance, standardDeviation;

    public SetOfDoubles(String setName) {
        this.setName = setName;
    }

    public SetOfDoubles(String setName, Double[] set) {
        this.setName = setName;
        this.set = set;
    }

    public String addDoubles(Double[] add) {
        this.set = ArrayUtils.addAll(set, add);
        return "Doubles added to " + setName + "\n";
    }

    public String refresh() {
        min = Double.MAX_VALUE;
        max = Double.MIN_VALUE;
        length = set.length;

        Double s = 0.0;
        for (Double d : set) {
            s += d;
            if (d < min) {
                min = d;
            }
            if (d > max) {
                max = d;
            }
        }
        sum = s;
        range = max - min;
        average = sum / length;

        Double var = 0.0;
        for (Double d : set) {
            var = (d - average) * (d - average);
        }
        var /= (length - 1);
        variance = var;

        standardDeviation = sqrt(variance);

        return setName + " has been refreshed!";
    }

    public String getSetName() {
        return setName;
    }

}