Counting variable by group

[Tom Crook]

Hi,

I'm trying to count the number of variables per person that have an ID ending in each integer.
i.e. 10 variables end in 1, 5 in 2, etc...

I have a variable for the final digit of the ID, AppInt

This line works to give the correct value per subgroup:
bysort examiner auy_numeric: count if AppInt==1

However when trying to generate a variable for this, the value given is just the total number of observations per person:
bysort examiner auy_numeric: egen Ones = count(AppInt==1)

Is there a simpler, less clunky way of doing this that actually works?

TIA.

[Nick Cox]

I think you want to count observations, not variables (else if you mean what you say, I don't understand your question).

If Appint holds your final digit then you can

tab anyothervariable Appint 

bysort anyothervariable Appint : gen count = _N

and so on.