Hi Mike
Can you use egen(sumperyear): rowsum(var1-var5)
Thank you,
Yours Sincerely,
Anwar
________________________________________
From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] on behalf of Nick Cox [njcoxstata@gmail.com]
Sent: Friday, February 08, 2013 9:36 AM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: FW: forvalues question...
Yes, that's better than my solution. I got hung up on how to do it
with -forvalues-, when a better answer is to do it directly.
Nick
On Fri, Feb 8, 2013 at 2:27 PM, Scott Merryman <scott.merryman@gmail.com> wrote:
> On Fri, Feb 8, 2013 at 8:04 AM, Mahometa, Michael J
> <michael.mahometa@ssc.utexas.edu> wrote:
>> All,
>>
>> I've got a dataset that has multiple rows for one year, with several sequential variables. And, I'd like to sum what happens over the year (using something like collapse). I have 20 variables and the data looks like:
>>
>> Year var1 var2 var3 var4 var5 ....
>> 1999 2 5 6 1 4
>> 1999 4 1 5 2 5
>> 1999 1 3 5 6 7
>> 2000 6 5 1 3 8
>> 2000 1 1 2 3 6
>> ...
>>
>> So the current "brute force" method is:
>> collapse (sum) var1_s=var1 var2_s=var2 ///
>> var3_s=var3 var4_s=var4, by(year)
>>
>> But this seems in-elegant.
>
> How about:
>
> collapse (sum) var*, by(year)
> rename var* =_s
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