MatrixIterator
org.ejml.data

Class MatrixIterator

  • All Implemented Interfaces:
    Iterator<Double>


    public class MatrixIteratorextends Objectimplements Iterator<Double>
    This is a matrix iterator for traversing through a submatrix. For speed it is recommended that you directly access the elements in the matrix, but there are some situations where this can be a better design.
    • Constructor Summary

      Constructors 
      Constructor and Description
      MatrixIterator(Matrix64F a, boolean rowMajor, int minRow, int minCol, int maxRow, int maxCol)
      Creates a new iterator for traversing through a submatrix inside this matrix.
    • Constructor Detail

      • MatrixIterator

        public MatrixIterator(Matrix64F a,              boolean rowMajor,              int minRow,              int minCol,              int maxRow,              int maxCol)
        Creates a new iterator for traversing through a submatrix inside this matrix. It can be traversed by row or by column. Range of elements is inclusive, e.g. minRow = 0 and maxRow = 1 will include rows 0 and 1. The iteration starts at (minRow,minCol) and ends at (maxRow,maxCol)
        Parameters:
        a - the matrix it is iterating through
        rowMajor - true means it will traverse through the submatrix by row first, false by columns.
        minRow - first row it will start at.
        minCol - first column it will start at.
        maxRow - last row it will stop at.
        maxCol - last column it will stop at.
    • Method Detail

      • getIndex

        public int getIndex()
        Which element in the submatrix was returned by next()
        Returns:
        Submatrix element's index.
      • isRowMajor

        public boolean isRowMajor()
        True if it is iterating through the matrix by rows and false if by columns.
        Returns:
        row major or column major
      • set

        public void set(double value)
        Sets the value of the current element.
        Parameters:
        value - The element's new value.

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