public void testGetStartYValue() {
        DefaultIntervalXYDataset d = createSampleDataset1();
        assertEquals(1.09, d.getStartYValue(0, 0), EPSILON);
        assertEquals(2.09, d.getStartYValue(0, 1), EPSILON);
        assertEquals(3.09, d.getStartYValue(0, 2), EPSILON);
        assertEquals(11.09, d.getStartYValue(1, 0), EPSILON);
        assertEquals(12.09, d.getStartYValue(1, 1), EPSILON);
        assertEquals(13.09, d.getStartYValue(1, 2), EPSILON);