I don't think there is any rule against an option called -if()-. However, a programmer would have a hard time supporting -if- and -if()- together and it would generally be considered Bad Style.
Nick
[email protected]
Maarten buis
That should read
factor wbq91-wbq93 if year == 2005, factors(1)
Remember that -if- is never an option and should thus
appear before the ","
--- On Mon, 9/11/09, C.T. Shehzad wrote:
> However, stata says "option if not allowed". It has
> happened before as well that conditionals do not work
> as option.
>
> factor wbq91-wbq93, factors(1) if year == 2005
> option if not allowed
> r(198)
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