Example usage for java.util Arrays stream

Introduction

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

Prototype

public static DoubleStream stream(double[] array, int startInclusive, int endExclusive) 

Source Link

Document

Returns a sequential DoubleStream with the specified range of the specified array as its source.

Usage

From source file:de.tudarmstadt.ukp.dkpro.core.mallet.internal.wordembeddings.MalletEmbeddingsUtils.java

/**
 * Convert a single line in the expected format ({@code <token> <value1> ... <valueN>} int a pair
 * holding the token and the corresponding vector.
 *
 * @param line a line/*ww  w.  ja  v a 2  s .c o  m*/
 * @return a {@link Pair}
 */
private static Pair<String, double[]> lineToEmbedding(String line) {
    String[] array = line.split(" ");
    int size = array.length;
    double[] vector = Arrays.stream(array, 1, size).mapToDouble(Double::parseDouble).toArray();
    return Pair.of(array[0], vector);
}

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From source file:com.bwc.ora.models.Lrp.java

/**
 * Get an array containing the gray scale values of the LRP arranged from
 * smallest y-value to greatest y-value (i.e. top to bottom in the image).
 * The pixel data is taken from the transformed OCT with all appropriately
 * applied transformations. Each call to this method will go and grab the
 * pixel data allowing for updated intensity data to be grabbed immediately.
 *
 * @return// w w w. j  av  a2s .c om
 */
private int[] getIntensityValues() {

    BufferedImage octToProcess = transformedOctImage == null ? oct.getTransformedOct() : transformedOctImage;
    int[] rgbArray = octToProcess.getRGB(x, y, width, height, null, 0, width);

    return IntStream.range(0, height)
            .map(scanY -> (int) Math.round(Arrays.stream(rgbArray, width * scanY, width * (scanY + 1))
                    .map(ImageUtils::calculateGrayScaleValue).average().orElse(0)))
            .toArray();
}

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