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st: cum sum in new variable


From   Max Fotbollen <praktiskbox@live.se>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: cum sum in new variable
Date   Fri, 15 Apr 2011 10:04:04 +0200

Sorry, in my previous mail I inserted a wrong column in my ex. Here is the correct one:
 
Hi
I need to have cumulative sum of one certain real number variable set into a new variable. Also I need to be able to list the value of variable in a way one can see all degits.
 
Ex:
This my original variable
list rrs in 1/16
     +----------+
     |      rrs |
     |----------|
  1. |        1 |
  2. |        0 |
  3. |        1 |
  4. |        0 |
  5. |        0 |
     |----------|
  6. |    11025 |
  7. |       25 |
  8. |     1444 |
  9. |        1 |
 10. |        0 |
     |----------|
 11. |        0 |
 12. |   252004 |
 13. |     1089 |
 14. |       36 |
 15. |    21316 |
     |----------|
 16. | 2.57e+07 |

Actually what i need is the cumulative sum of this variable set into one variable. I do not how to do it.(this is my first question).
So what I do is to sum(rrs). This is the result i get
 
list rrss in 1/16
     +----------+
     |     rrss |
     |----------|
  1. |        1 |
  2. |        1 |
  3. |        2 |
  4. |        2 |
  5. |        2 |
     |----------|
  6. |    11027 |
  7. |    11052 |
  8. |    12496 |
  9. |    12497 |
 10. |    12497 |
     |----------|
 11. |    12497 |
 12. |   264501 |
 13. |   265590 |
 14. |   265626 |
 15. |   286942 |
     |----------|
 16. | 2.60e+07 |
     +----------+

 
The second question is that i want to see the value of the last observation in the same format as in the previous observation.
 
Thanks for comments and suggestion,
 
Max
P.S. I read about cumsum, but i think it is only for ones and zeros 


  		 	   		  
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