A plehtora of Quantities

[Ed Shaya]

Alberto,
 
   I agree with you that right now it is hard to think of a valid, 
acceptable use case for this since one can always use a "unitless".  
But, IF someone should come up with a real, legitimate need for such a 
thing, it is possible and it will be clear to everyone how to make such 
an object and noone's software will break from such an object.

Hmm, a RandomNumberQuantity could be defined with neither units nor 
error (a TrivialQuantity), and a DevianceOfRandomNumberQuantity could 
have error but no units.  As in, we tried to determine the sigma of the 
parent distribution of the random number generator that created this 
list of random numbers.

Ed

Alberto Micol wrote:

>> Want a quantity with errors but no units?  Go right ahead.
>
>
>
> I think we should forbid such option, really!
> Of course, unless you can convince me of the contrary.
>
> Alberto
>
>
>
>