Method getRow

JSAT/src/jsat/linear/Matrix.java:679–687

Creates a vector that has a copy of the values in row i of this matrix. Altering it will not effect the values in this matrix. @param r the row to copy @return a clone of the row as a Vec

(int r)

     * @return a clone of the row as a {@link Vec}
     */
    public Vec getRow(int r)
    {
        if(r < 0 || r >= rows())
            throw new ArithmeticException("Row was not a valid value " + r + " not in [0," + (rows()-1) + "]");
        DenseVector c = new DenseVector(cols());
        for(int j =0; j < cols(); j++)
            c.set(j, get(r, j));
        return c;
    }
    
    /**
     * Obtains a vector that is backed by <i>this</i>, at very little memory