Example usage for java.util Arrays copyOf

Introduction

In this page you can find the example usage for java.util Arrays copyOf.

Prototype

public static boolean[] copyOf(boolean[] original, int newLength)

Source Link

Document

Copies the specified array, truncating or padding with false (if necessary) so the copy has the specified length.

Usage

From source file:FileMangement.PathFinder.java

public static Path[] NullCleaner(Path[] test) {
    int i = 0;/*w  w w .  ja va  2  s.  c om*/
    int nullAmount = 0;
    while (i < test.length) {
        if (test[i] == null) {
            nullAmount++;
            i++;
        } else {
            i++;
        }
    }
    Path[] cleanArray = Arrays.copyOf(test, test.length - nullAmount);
    return cleanArray;
}

From source file:net.shipilev.fjptrace.util.PairedList.java

private void ensureCapacity(int newSize) {
    if (newSize >= size) {
        k1 = Arrays.copyOf(k1, multiply(newSize));
        k2 = Arrays.copyOf(k2, multiply(newSize));
        size = multiply(newSize);// ww w.ja  v a2s .c o m
    }
}

From source file:com.opengamma.analytics.math.statistics.descriptive.QuartileSkewnessCalculator.java

/**
 * @param x The array of data, not null. Must contain at least three points.
 * @return The quartile skewness./*  w w w  .j av  a2 s . co m*/
 */
@Override
public Double evaluate(final double[] x) {
    Validate.notNull(x, "x");
    final int n = x.length;
    Validate.isTrue(n >= 3, "Need at least three points to calculate interquartile range");
    if (n == 3) {
        return (x[2] - 2 * x[1] + x[0]) / 2.;
    }
    final double[] copy = Arrays.copyOf(x, n);
    Arrays.sort(copy);
    double[] lower, upper;
    if (n % 2 == 0) {
        lower = Arrays.copyOfRange(copy, 0, n / 2);
        upper = Arrays.copyOfRange(copy, n / 2, n);
    } else {
        lower = Arrays.copyOfRange(copy, 0, n / 2 + 1);
        upper = Arrays.copyOfRange(copy, n / 2, n);
    }
    final double q1 = MEDIAN.evaluate(lower);
    final double q2 = MEDIAN.evaluate(x);
    final double q3 = MEDIAN.evaluate(upper);
    return (q1 - 2 * q2 + q3) / (q3 - q1);
}

From source file:it.unibo.alchemist.model.implementations.positions.ContinuousGenericEuclidean.java

private ContinuousGenericEuclidean(final boolean copy, final double... coord) {
    if (copy) {//from w ww.  j  a  v  a2  s.co m
        c = Arrays.copyOf(coord, coord.length);
    } else {
        c = coord;
    }
    org.apache.commons.math3.util.MathUtils.checkFinite(c);
}

From source file:edu.illinois.cs.cogcomp.saul.test.TestReal.java

public TestReal(Learner classifier, Classifier oracle, Parser parser) {
    int examples = 0;
    double totalDifference = 0;
    double[] actuals = {};
    double[] predictions = {};

    classifier.write(System.out);

    for (Object example = parser.next(); example != null; example = parser.next()) {
        double prediction = classifier.realValue(example);

        predictions = Arrays.copyOf(predictions, predictions.length + 1);
        predictions[predictions.length - 1] = prediction;

        double value = oracle.realValue(example);

        actuals = Arrays.copyOf(actuals, actuals.length + 1);
        actuals[actuals.length - 1] = value;

        double difference = Math.abs(prediction - value);
        totalDifference += difference;/*w ww  .j  a  v a 2  s .c o  m*/
        classifier.classify(example);
        ++examples;

        System.out.println(
                "Example " + examples + " difference: " + difference + " (prediction: " + prediction + ")");
    }
    System.out.println("test examples number: " + examples);
    double avg = totalDifference / examples;
    System.out.println("Average difference: " + avg);
    double p = getPearsonCorrelation(predictions, actuals);
    System.out.println("Pearson correlation:" + p);
    SpearmansCorrelation e = new SpearmansCorrelation();
    double sp = e.correlation(predictions, actuals);
    System.out.println("Spearman correlation:" + sp);

}

From source file:gaffer.function.simple.filter.MultiRegex.java

@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS, include = JsonTypeInfo.As.WRAPPER_OBJECT)
@JsonProperty("value")
public Pattern[] getPatterns() {
    return Arrays.copyOf(patterns, patterns.length);
}

From source file:com.offbynull.peernetic.playground.chorddht.messages.external.GetClosestFingerRequest.java

public byte[] getSkipId() {
    return Arrays.copyOf(skipId, skipId.length);
}

From source file:org.leandreck.endpoints.processor.model.RequestMapping.java

public String[] produces() {
    return Arrays.copyOf(produces, produces.length);
}

From source file:hivemall.utils.lang.ArrayUtils.java

@Nonnull
public static double[] set(@Nonnull double[] src, final int index, final double value) {
    if (index >= src.length) {
        src = Arrays.copyOf(src, src.length * 2);
    }/*  w  w  w.j  a v  a  2s.  com*/
    src[index] = value;
    return src;
}

From source file:at.jku.traces.json.UserTrace.java

/**
 * //from   ww w.  j  a  v a  2s . c om
 * @param id
 *            user id
 * @param tr
 *            GPS points
 */
public UserTrace(final int id, final GPSPoint[] tr) {
    mi = id;
    trace = Arrays.copyOf(tr, tr.length);
}