On Thu, 25 Apr 2013, Allin Cottrell wrote:
 On Thu, 25 Apr 2013, Sven Schreiber wrote:
> I was mixing up the parentheses and tried to access a single value of a
> series like this:
> x(1995:1) -- instead of x[1995:1]
> 
> The problem is that gretl did not complain [...]
 We could, I suppose, make an internal distinction between 
 "general" scalars and scalars that have been converted from 
 observation identifiers, and limit the contexts in which we 
 accept the latter. 
I've done something like this in CVS, and done a certain 
amount of checking for bad side-effects. OK so far, but more 
testing would be good.
Allin