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From |
urbain thierry YOGO <yogout@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: generate a new categorical variable |

Date |
Thu, 13 Sep 2012 21:37:02 +0100 |

Thank you very much. I really appreciate 2012/9/13, Steve Nakoneshny <scnakone@ucalgary.ca>: > Alternatively, you could achieve the same result via -encode-. > > encode Z if Y==1, gen(X) > replace X=0 if Y==0 > > Steve > > On 2012-09-13, at 1:53 PM, urbain thierry YOGO wrote: > >> Dear all >> i have two variables Y and Z. Y is a dummy variable which takes 1 if >> individual has access to water and 0 otherwise. Z is a categorical >> variable which has the following structure: >> Z=A if individual uses bleach to clean water >> Z=B if individual use a filter to clean water >> Z=C if individual use solar energy to clean water >> Z=D if individual use absorbent cotton to clean water >> >> Here is my problem. I want to generate a new variable X which should >> be a combination of Y and Z. Here is the code i have written >> gen X=0 if Y==0 >> replace X=1 if Y==1 & Z=="A" >> replace X=2 if Y==1 & Z=="B" >> replace X=3 if Y==1 & Z=="C" >> replace X=4 if Y==1 & Z=="D" >> >> My concern is that when i write this code, the first two lines work, >> but after, there is 0 replacement. Please can somebody help me? Thank >> >> -- >> *Urbain Thierry YOGO >> Ph.D candidate in Economics* >> * >> * 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/ > -- *Urbain Thierry YOGO Ph.D candidate in Economics* * * 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: generate a new categorical variable***From:*urbain thierry YOGO <yogout@gmail.com>

**Re: st: generate a new categorical variable***From:*Steve Nakoneshny <scnakone@ucalgary.ca>

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