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From |
"M.P.J. van Zaal" <Matthias.vanZaal@student.uva.nl> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Creating a variable from several "subvariables" |

Date |
Sat, 04 Dec 2010 14:01:43 +0100 |

Your method works allright. But i just figured out a different method "egen x_total=total(x1), by(x1- x12)" The methods give slightly different results. Which method would be the correct approach? ----- Original Message ----- From: Mitch Abdon <mitchaabdon@gmail.com> Date: Saturday, December 4, 2010 1:55 pm Subject: Re: st: Creating a variable from several "subvariables" To: statalist@hsphsun2.harvard.edu > egen x_total=rsum(x_1-x_12) //assuming that the variables are > in order > > On Sat, Dec 4, 2010 at 8:43 PM, M.P.J. van Zaal > <Matthias.vanZaal@student.uva.nl> wrote: > > Dear Statalist users, > > > > For my research I have determined the value of a variable in 12 > > scenarios. > > > > "gen x_1= "input function and values" if scenario1==1" > > > > Each scenario's values differ in some aspect. > > > > I have now 12 variables, x_1 to x_12, each with n=+/- 500. > > > > For the next step I would like to create a new variable which > > incorporates x_1 - x-12. > > The variable would be something like "x_total= x_1+x_2+....+x_12", > > with n=+/-6000. > > > > I tried to simply add them with the use of the generate command but > > this did not work. I also tried to use egen with the sum > command, but > > this also did not work. > > > > What would be the correct way to create "x_total" in STATA? > > > > Many thanks! > > > > Mathijs > > * > > * 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/ > > > > > > -- > Best, > Mitch > > > Arnelyn Abdon > +639178034402 > http://statadaily.wordpress.com > http://www.facebook.com/pages/Stata-Daily/116477895082525 > > * > * 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/

**Follow-Ups**:**Re: st: Creating a variable from several "subvariables"***From:*Mitch Abdon <mitchaabdon@gmail.com>

**References**:**st: Creating a variable from several "subvariables"***From:*"M.P.J. van Zaal" <Matthias.vanZaal@student.uva.nl>

**Re: st: Creating a variable from several "subvariables"***From:*Mitch Abdon <mitchaabdon@gmail.com>

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