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RE: st: Count observations


From   "Impavido, Gregorio" <[email protected]>
To   "[email protected]" <[email protected]>
Subject   RE: st: Count observations
Date   Tue, 23 Jul 2013 15:03:40 +0000

Unclear why it does not work. It works with the following:

******* start example
clear all
input id
1
1
1
2
2
3
4
4
4
end
input str2 fee
A
B
C
C
A
A
B
""
A
count if fee=="A"
******* end example

Notice that another alternative is -tab fee-

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Miguel Angel Duran Munoz
Sent: Tuesday, July 23, 2013 10:51 AM
To: [email protected]
Subject: Re: st: Count observations

Hi, Statalisters. I have the following doubt. My dataset is arranged in the following way. I have a variable that identifies firms (say id).
Another variable describes whether different types of fees (eg, A B C) applies to a firm. Accordingly, the dataset looks similar to

Id    Type-of-fee

1          A
1          B
1          C
2          C
2          A
3          A
4          B
4          .
4          A

I would like to know, for instance, the number of A fees that there are. I have used -count- but I am not able to get what I want. Will you please help me?

Thanks in advance.

Miguel.


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