First, please don't send attachments to Statalist.
This is explained in the FAQ which you should
read thoroughly before your next posting to
Statalist.
Second, I don't know why you put
... [if cat = 1]
but the brackets make this illegal and in Stata
testing for equality requires == not =. Try
tabodds case year [fweight=freq] if case == 1
Third, you can loop
forval i = 1/5 {
tabodds case year [fweight = freq] if case == `i'
}
Finally, -if- is not an option. It is (here) a qualifier.
Nick
[email protected]
Sean Shu
> I have a cross-sectional time series dataset. I want to find
> whether any
> trend is presented over the years for different categories. So I used
> tabodds command. But I want to apply the command for
> different category
> seperately. so I write the command syntax over the dataset attached:
>
> > tabodds case year [fweight=freq][if cat = 1]
> > tabodds case year [fweight=freq][if cat = 2]
> ...
> > tabodds case year [fweight=freq][if cat = 5]
>
> Can you tell what's wrong with it? and Do I need write syntax to loop
> the tabodds five time?
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