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From |
Jeph Herrin <junk@spandrel.net> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: RE: AW: how to reconstruct a minimum acceptable income from a set of binary variables? |

Date |
Mon, 02 Mar 2009 11:12:42 -0500 |

Well, on inspection, I see that her data have multiple tags per record, so that 1s are filled to the right after the first (left to right) 1; I was misled by Martin's faux dataset. Her stated logic would then require: gen min=mininc1*500+(mininc2-mininc1)*1000+(mininc3-mininc2)*1500 Pending clarificaiton from Ekaterina about the _real_ structure of her data.. Jeph Nick Cox wrote:

Good!I didn't spell out that I feared that there are yet other variables in what might be Ekaterina's _real_ problem, lurking behind her statedproblem, making a more general approach attractive too.Nickn.j.cox@durham.ac.ukJeph Herrin Briefer yet: gen min=mininc1*500+mininc2*1000+mininc3*1500 which also traps the missings Nick cautions about. Nick Cox wrote:A variation on the same idea:gen min = 500foreach v in 1000 1500 2000 {replace min = `v' if mindesinc_`v' == 1}To be careful, checkegen row = rowtotal(mindesinc*)assert row == 1Nickn.j.cox@durham.ac.ukMartin Weiss *reconstruct Ekaterina`s data clear* input id mindesinc_500_999 mindesinc_1000_1499 mindesinc_1500_1999 101 1 0 0 0 102 0 1 0 0 103 0 0 1 0 104 0 0 1 0 105 0 1 0 0 end *construct the minimum desired income g mindesinc=500 if mindesinc_500_999 replace mindesinc=1000 if mindesinc_1000_1499 replace mindesinc=1500 if mindesinc_1500_1999 l Ekaterina Hertog I am dealing with a dataset from a private company and so my dataoftencomes in rather strange format and I now came against the following problem:I have a set of individuals who answered questions about desiredincome.It looks as follows: Individ nmb | Min desired income 500 - 999 | 1000 - 1499 | 1500 -2000|101 | 0| 0 | 1 |102 | 0| 1 | 1 |103 | 0| 0 | 1 |104 | 1| 1 | 1 |105 | 0| 1 | 1 |Is there a way to automatically recode these binary minimum desiredincome variables into a numerical variable which would state theminimumacceptable figure for each individual?That is some routine which would check "Min desired income 500 - 999"and if it equals 1 then would input 500 for the individual in questioninto a newly constructed variable "Minimum acceptable income" and moveon to the next person and if it equals 0 would look at the value of"1000 - 1499" variable and if it equals 1 would input 1000 for thatperson and move on to the next person and if it is 0 would look at"1500- 2000" variable?* * 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: RE: AW: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*Ekaterina Hertog <ekaterina.hertog@sociology.ox.ac.uk>

**AW: st: RE: AW: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**References**:**st: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*Ekaterina Hertog <ekaterina.hertog@sociology.ox.ac.uk>

**st: AW: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**st: RE: AW: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**Re: st: RE: AW: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*Jeph Herrin <junk@spandrel.net>

**RE: st: RE: AW: how to reconstruct a minimum acceptable income from a set of binary variables?***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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