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http://www.stata.com/support/faqs/data/members.html
may contain part of the answer...
HTH
Martin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Sandu Cojocaru
Sent: Montag, 2. November 2009 20:55
To: [email protected]
Subject: Re: st: loop question
Sergiy,
Within each group, i'm trying to calculate for each member i the sum
of differences between Cj and Ci for all Cj that are strictly greater
than Ci.
hope this clarifies my question.
cheers,
sandu
On Mon, Nov 2, 2009 at 3:49 PM, Sergiy Radyakin <[email protected]>
wrote:
> Hi, Sandu
> Can you explain how member_id is relevant here?
> Can you explain line 4? (group=2,member=1)
> Do you mean Cj>Ci or Cj!=Ci?
> Best, Sergiy
>
> On Mon, Nov 2, 2009 at 2:34 PM, Sandu Cojocaru <[email protected]>
wrote:
>> Dear All:
>>
>> I'm having trouble generating a variable that for each member i equals
>> sum(Cj-Ci) over all Cj>Ci where i and j are members of the same group.
>> Here's an example of the data setup - I'm trying to calculate
>> `outcome_var'.
>> For row 1 outcome_var=0, for row 3 = (200-100)+(300-100) = 300...and so
on...
>>
>> group_id member_id C outcome_var
>> 1 1 300 0
>> 1 2 200 100
>> 1 3 100 300
>> 2 1 150 50
>> 2 2 200 0
>> 2 3 100 150
>> 2 4 50 300
>> 3 1 and so on...
>>
>> Any help would be greatly appreciated!
>> sandu
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
