SparseDComplexMatrix2D
cern.colt.matrix.tdcomplex.impl

Class SparseDComplexMatrix2D

    • Constructor Detail

      • SparseDComplexMatrix2D

        public SparseDComplexMatrix2D(double[][] values)
        Constructs a matrix with a copy of the given values. values is required to have the form values[row][column] and have exactly the same number of columns in every row.

        The values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa.

        Parameters:
        values - The values to be filled into the new matrix.
        Throws:
        IllegalArgumentException - if for any 1 <= row < values.length: values[row].length != values[row-1].length .
      • SparseDComplexMatrix2D

        public SparseDComplexMatrix2D(int rows,                      int columns)
        Constructs a matrix with a given number of rows and columns and default memory usage.
        Parameters:
        rows - the number of rows the matrix shall have.
        columns - the number of columns the matrix shall have.
        Throws:
        IllegalArgumentException - if rows<0 || columns<0 || (double)columns*rows > Integer.MAX_VALUE .
    • Method Detail

      • assign

        public DComplexMatrix2D assign(double[] value)
        Description copied from class: DComplexMatrix2D
        Sets all cells to the state specified by values. values is required to have the form re = values[row*rowStride+column*columnStride]; im = values[row*rowStride+column*columnStride+1] and have exactly the same number of rows and columns as the receiver.

        The values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa.

        Overrides:
        assign in class DComplexMatrix2D
        Parameters:
        value - the values to be filled into the cells.
        Returns:
        this (for convenience only).
      • assign

        public DComplexMatrix2D assign(DComplexMatrix2D source)
        Description copied from class: DComplexMatrix2D
        Replaces all cell values of the receiver with the values of another matrix. Both matrices must have the same number of rows and columns. If both matrices share the same cells (as is the case if they are views derived from the same matrix) and intersect in an ambiguous way, then replaces as if using an intermediate auxiliary deep copy of other.
        Overrides:
        assign in class DComplexMatrix2D
        Parameters:
        source - the source matrix to copy from (may be identical to the receiver).
        Returns:
        this (for convenience only).
      • cardinality

        public int cardinality()
        Description copied from class: DComplexMatrix2D
        Returns the number of cells having non-zero values; ignores tolerance.
        Overrides:
        cardinality in class DComplexMatrix2D
        Returns:
        the number of cells having non-zero values.
      • getQuick

        public double[] getQuick(int row,                int column)
        Description copied from class: DComplexMatrix2D
        Returns the matrix cell value at coordinate [row,column].

        Provided with invalid parameters this method may return invalid objects without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().

        Specified by:
        getQuick in class DComplexMatrix2D
        Parameters:
        row - the index of the row-coordinate.
        column - the index of the column-coordinate.
        Returns:
        the value at the specified coordinate.
      • index

        public long index(int row,         int column)
        Description copied from class: AbstractMatrix2D
        Returns the position of the given coordinate within the (virtual or non-virtual) internal 1-dimensional array.
        Overrides:
        index in class AbstractMatrix2D
        Parameters:
        row - the index of the row-coordinate.
        column - the index of the column-coordinate.
      • like

        public DComplexMatrix2D like(int rows,                    int columns)
        Description copied from class: DComplexMatrix2D
        Construct and returns a new empty matrix of the same dynamic type as the receiver, having the specified number of rows and columns. For example, if the receiver is an instance of type DenseComplexMatrix2D the new matrix must also be of type DenseComplexMatrix2D. In general, the new matrix should have internal parametrization as similar as possible.
        Specified by:
        like in class DComplexMatrix2D
        Parameters:
        rows - the number of rows the matrix shall have.
        columns - the number of columns the matrix shall have.
        Returns:
        a new empty matrix of the same dynamic type.
      • like1D

        public DComplexMatrix1D like1D(int size)
        Description copied from class: DComplexMatrix2D
        Construct and returns a new 1-d matrix of the corresponding dynamic type, entirelly independent of the receiver. For example, if the receiver is an instance of type DenseComplexMatrix2D the new matrix must be of type DenseComplexMatrix1D.
        Specified by:
        like1D in class DComplexMatrix2D
        Parameters:
        size - the number of cells the matrix shall have.
        Returns:
        a new matrix of the corresponding dynamic type.
      • setQuick

        public void setQuick(int row,            int column,            double[] value)
        Description copied from class: DComplexMatrix2D
        Sets the matrix cell at coordinate [row,column] to the specified value.

        Provided with invalid parameters this method may access illegal indexes without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().

        Specified by:
        setQuick in class DComplexMatrix2D
        Parameters:
        row - the index of the row-coordinate.
        column - the index of the column-coordinate.
        value - the value to be filled into the specified cell.
      • setQuick

        public void setQuick(int row,            int column,            double re,            double im)
        Description copied from class: DComplexMatrix2D
        Sets the matrix cell at coordinate [row,column] to the specified value.

        Provided with invalid parameters this method may access illegal indexes without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().

        Specified by:
        setQuick in class DComplexMatrix2D
        Parameters:
        row - the index of the row-coordinate.
        column - the index of the column-coordinate.
        re - the real part of the value to be filled into the specified cell.
        im - the imaginary part of the value to be filled into the specified cell.

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