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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

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, 2 Mar 2009 15:49:40 -0000 |

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 stated problem, making a more general approach attractive too. Nick n.j.cox@durham.ac.uk Jeph 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 = 500 > > foreach v in 1000 1500 2000 { > replace min = `v' if mindesinc_`v' == 1 > } > > To be careful, check > > egen row = rowtotal(mindesinc*) > assert row == 1 > > Nick > n.j.cox@durham.ac.uk > > Martin 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 data often > comes in rather strange format and I now came against the following > problem: > > I have a set of individuals who answered questions about desired income. > > 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 desired > income variables into a numerical variable which would state the minimum > > acceptable 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 question > into a newly constructed variable "Minimum acceptable income" and move > on 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 that > person 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/

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

**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>

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