Now this problem I understand. Without restructuring
your data you can do
. qui tab state
. di `r(r)'
or
. levelsof state, local(states)
. di `: list sizeof states'
Nick
[email protected]
Eric G. Wruck
> Well, I only count 50 states plus the District of Columbia.
> You can't go by the number you have next to the state.
> Numbers 3, 7, & 15, for example, are all missing. To see how
> many unique states you have, you could do something like:
>
> sort state
>
> by state: keep if _n == 1
>
> tab state
>
>
>
> >ALABAMA 1
> >WEST VIRGINIA 54
> >WISCONSIN 55
> >WYOMING 56
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