Examples with IComplexNDArray org.nd4j.linalg.api.complex.IComplexNDArray used on opensource projects

Example 16 with IComplexNDArray

use of org.nd4j.linalg.api.complex.IComplexNDArray in project nd4j by deeplearning4j.

the class Nd4j method diag.

/**
 * Creates a new matrix where the values of the given vector are the diagonal values of
 * the matrix if a vector is passed in, if a matrix is returns the kth diagonal
 * in the matrix
 *
 * @param x the diagonal values
 * @param k the kth diagonal to getDouble
 * @return new matrix
 */
public static IComplexNDArray diag(IComplexNDArray x, int k) {
    if (x.isScalar())
        return x.dup();
    if (x.isVector()) {
        IComplexNDArray m = Nd4j.createComplex(x.length(), x.length());
        IComplexNDArray xLinear = x.linearView();
        for (int i = 0; i < x.length(); i++) m.putScalar(i, i, xLinear.getComplex(i));
        return m;
    } else if (x.isMatrix()) {
        int vectorLength = x.rows() - k;
        IComplexNDArray ret = Nd4j.createComplex(new int[] { vectorLength, 1 });
        for (int i = 0; i < vectorLength; i++) {
            ret.putScalar(i, x.getComplex(i, i));
        }
        return ret;
    }
    throw new IllegalArgumentException("Illegal input for diagonal of shape " + x.shape().length);
}

Example 17 with IComplexNDArray

use of org.nd4j.linalg.api.complex.IComplexNDArray in project nd4j by deeplearning4j.

the class Nd4j method createComplex.

/**
 * Creates a complex ndarray with the specified shape
 *
 * @param shape  the shape of the ndarray
 * @param stride the stride for the ndarray
 * @param offset the offset of the ndarray
 * @return the instance
 */
public static IComplexNDArray createComplex(int[] shape, int[] stride, long offset) {
    checkShapeValues(shape);
    IComplexNDArray ret = INSTANCE.createComplex(shape, stride, offset);
    logCreationIfNecessary(ret);
    return ret;
}

Example 18 with IComplexNDArray

use of org.nd4j.linalg.api.complex.IComplexNDArray in project nd4j by deeplearning4j.

the class Nd4j method complexRand.

// //////////////////// RANDOM ///////////////////////////////
/**
 * Create a random ndarray with the given shape using
 * the current time as the seed
 *
 * @param shape the shape of the ndarray
 * @return the random ndarray with the specified shape
 */
public static IComplexNDArray complexRand(int... shape) {
    INDArray based = Nd4j.rand(new int[] { 1, ArrayUtil.prod(shape) * 2 });
    IComplexNDArray ret = Nd4j.createComplex(based.data(), shape);
    logCreationIfNecessary(ret);
    return ret;
}

Example 19 with IComplexNDArray

use of org.nd4j.linalg.api.complex.IComplexNDArray in project nd4j by deeplearning4j.

the class Nd4j method complexZeros.

/**
 * Create an ndarray of ones
 *
 * @param shape the shape of the ndarray
 * @return an ndarray with ones filled in
 */
public static IComplexNDArray complexZeros(int... shape) {
    checkShapeValues(shape);
    IComplexNDArray ret = INSTANCE.complexZeros(shape);
    logCreationIfNecessary(ret);
    return ret;
}

Example 20 with IComplexNDArray

use of org.nd4j.linalg.api.complex.IComplexNDArray in project nd4j by deeplearning4j.

the class Nd4j method createComplex.

/**
 * Create an ndrray with the specified shape
 *
 * @param data  the data to use with tne ndarray
 * @param shape the shape of the ndarray
 * @return the created ndarray
 */
public static IComplexNDArray createComplex(double[] data, int[] shape) {
    shape = getEnsuredShape(shape);
    if (shape.length == 1) {
        if (shape[0] == data.length) {
            shape = new int[] { 1, data.length };
        } else
            throw new ND4JIllegalStateException("Shape of the new array " + Arrays.toString(shape) + " doesn't match data length: " + data.length);
    }
    checkShapeValues(shape);
    IComplexNDArray ret = INSTANCE.createComplex(data, shape);
    logCreationIfNecessary(ret);
    return ret;
}