Class DoubleDenseNdArray

    • Method Detail

      • getDouble

        public double getDouble​(long... indices)
        Description copied from interface: DoubleNdArray
        Returns the double value of the scalar found at the given coordinates.

        To access the scalar element, the number of coordinates provided must be equal to the number of dimensions of this array (i.e. its rank). For example:

        
          DoubleNdArray matrix = NdArrays.ofDoubles(shape(2, 2));  // matrix rank = 2
          matrix.getDouble(0, 1);  // succeeds, returns 0.0
          matrix.getDouble(0);  // throws IllegalRankException
        
          DoubleNdArray scalar = matrix.get(0, 1);  // scalar rank = 0
          scalar.getDouble();  // succeeds, returns 0.0
         
        Specified by:
        getDouble in interface DoubleNdArray
        Parameters:
        indices - coordinates of the scalar to resolve
        Returns:
        value of that scalar
      • setDouble

        public DoubleNdArray setDouble​(double value,
                                       long... indices)
        Description copied from interface: DoubleNdArray
        Assigns the double value of the scalar found at the given coordinates.

        To access the scalar element, the number of coordinates provided must be equal to the number of dimensions of this array (i.e. its rank). For example:

        
          DoubleNdArray matrix = NdArrays.ofDoubles(shape(2, 2));  // matrix rank = 2
          matrix.setDouble(10.0, 0, 1);  // succeeds
          matrix.setDouble(10.0, 0);  // throws IllegalRankException
        
          DoubleNdArray scalar = matrix.get(0, 1);  // scalar rank = 0
          scalar.setDouble(10.0);  // succeeds
         
        Specified by:
        setDouble in interface DoubleNdArray
        Parameters:
        value - value to assign
        indices - coordinates of the scalar to assign
        Returns:
        this array
      • copyTo

        public DoubleNdArray copyTo​(NdArray<Double> dst)
        Description copied from interface: NdArray
        Copy the content of this array to the destination array.

        The Shaped.shape() of the destination array must be equal to the shape of this array, or an exception is thrown. After the copy, the content of both arrays can be altered independently, without affecting each other.

        Specified by:
        copyTo in interface DoubleNdArray
        Specified by:
        copyTo in interface NdArray<Double>
        Parameters:
        dst - array to receive a copy of the content of this array
        Returns:
        this array