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From |
Richard Goldstein <richgold@ix.netcom.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: cum sum in new varaible |

Date |
Fri, 15 Apr 2011 08:24:53 -0400 |

1. use the -egen- command with the the total function 2. see -help format- Rich On 4/15/11 3:30 AM, Max Fotbollen wrote: > > 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. > > Es: > This my original variable > . list rrs in 1/16 > +-------+ > | rrs | > |-------| > 1. | -1 | > 2. | 0 | > 3. | -1 | > 4. | 0 | > 5. | 0 | > |-------| > 6. | -105 | > 7. | -5 | > 8. | 38 | > 9. | 1 | > 10. | 0 | > |-------| > 11. | 0 | > 12. | -502 | > 13. | -33 | > 14. | 6 | > 15. | -146 | > |-------| > 16. | -5068 | > +-------+ > Actuallu 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 obeservation 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 * * 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/

**References**:**st: cum sum in new varaible***From:*Max Fotbollen <praktiskbox@live.se>

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