*/
public void testRemoveColumnByKey() {
DefaultKeyedValues2D d = new DefaultKeyedValues2D();
d.addValue(new Double(1.0), "R1", "C1");
d.addValue(new Double(2.0), "R2", "C2");
d.removeColumn("C2");
d.addValue(new Double(3.0), "R2", "C2");
assertEquals(3.0, d.getValue("R2", "C2").doubleValue(), EPSILON);
// check for unknown column
boolean pass = false;