The syntax would need to be (e.g.)
... c(@ == "A")
-- or so I guess.
-rcount()- just lurks in the SSC archive
as one way to do this. Arguably, a better solution
in general is to loop over variables
using -foreach-, as earlier illustrated in this
thread. That's more code, but it's
exercising a general tool and saves learning
about an extra function with idiosyncratic syntax.
Nick
[email protected]
Steichen, Thomas J.
> victor michael zammit writes:
> > In version 8 ,how do you get to count the number of P's and
> > A's for each Name
> >
> > Hello Stata listers,
> > In version 8 ,how do you get to count the number of P's and
> > A's for each Name
> >
> >
> > Name D8 D9 D14 D15 D16 D19
> > 1. Z A A P P P A
> > 2. G P A P P A P
> > 3. S A P P P A A
> > 4. An A P P A P P
> > 5. Ma P P P P A P
>
> The egenmore function -rcount- would do this:
>
> . egen countA = rcount(D8 D9 D14 D15 D16 D19) , c(@ == A)
> . egen countP = rcount(D8 D9 D14 D15 D16 D19) , c(@ == P)
>
> This generates variables whose values are the counts of A's
> and P's in each observation.
> There may be an updated way to to this too...
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