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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Optimizing recoding procedures |

Date |
Tue, 11 Dec 2012 17:41:19 +0000 |

if x==1 | x==2 | x==3 | y==1 | y==2 | y==3 could be if inlist(x, 1, 2,3) | inlist(y, 1, 2, 3) but replace x = 0 if x==1 & x==2 & x==3 & y==1 & y==2 & y==3 will be legal but makes no sense. x can't be 1 and 2 at the same time; similar comment for y. There seem to be several other typos in your posting. I don't know of -egen- functions -ral()- or -rany()-. Nick On Tue, Dec 11, 2012 at 4:56 PM, Thomas Lux <tholux2000@yahoo.de> wrote: > I am trying to optimize my data recoding procedures (in Stata 11). > With the inlist-function it is possible to reduce the syntax in such a way: > > > > gen x = 1 if z==1 > > replace x = 0 if x==1 | x==2 | x==3 > > > gen x = 1 if z==1 > replace x = 0 if inlist(y, 1, 2, 3) > > > However, I am looking for functions that allow a reduction in a situation with two variables in the (second) if statement: > > > gen x = 1 if z==1replace x = 0 if x==1 | x==2 | x==3 | y==1 | y==2 | y==3 > > and: > > > geb x = 1 if z==1replace x = 0 if x==1 & x==2 & x==3 & y==1 & y==2 & y==3 > > > Is there a way of doing this via a DIRECT function in the if statement (that is without taking the indirect route via "egen ral" respectively "egen rany")? * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Optimizing recoding procedures***From:*Thomas Lux <tholux2000@yahoo.de>

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