dseries sub-samples beyond boudary
Currently, one obtains:
>> x=dseries((1:4)'); >> x(dates('2Y'):dates('5Y')) ans is a dseries object: | Variable_1 2Y | 2 3Y | 3 4Y | 4
Either it should return NaN for 5Y (my preference) or it should return an error. It is not a good idea to return an object that doesn't correspond to the user request.