On Mon, 10 Aug 2009, Allin Cottrell wrote (in response to
Zhenzeng Young):
[T]he word "to" is used by gretl in constructing ranges of
lags.
So my command to set up the list "sysvars" went wrong -- it was
confused by your variable named "to". My fix for issue this was
to make "to" a reserved word (that is, you are no longer allowed
to call a variable "to").
On second thoughts, there's no need to add "to" to the list of
reserved words. By coding a bit smarter I've removed the
ambiguity between "to" as variable name and "to" as lag range
indicator.
Allin.