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| From | Nick Cox <njcoxstata@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Generating a Variable |
| Date | Mon, 14 Feb 2011 02:03:36 +0000 |
I am not very clear on your definitions. Just because the mother smokes does not mean her children smoke. I seem to be answering your questions twice. You can use -rowsort- to group the same ids if the question is the same as your previous. And my second FAQ already mentioned today explains technique for what may be your main need. Nick On Mon, Feb 14, 2011 at 1:46 AM, Don Ruby <goofnmick@gmail.com> wrote: > Ha ha, well, we all have n-tuple personalities. I should clarify, > because I think this ought to be soluble. The person Sid=2 is the same > as Mid=2. Thus, Ms and Ss smoking behavior are all contained in this > data set, but I have only the "Msmoke" variable which refers to Ms > smoking behavior. I now need a variable that indicates whether the > sibling also smoked, so the created variable should be "Smoke". > > Is it possible to generate "Smoke" given the other columns? > > > > On Sun, Feb 13, 2011 at 8:21 PM, Nick Cox <njcoxstata@gmail.com> wrote: >> This doesn't seem soluble with your example data. The only information >> on who smokes concerns the mothers. Perhaps Goof wrote this mail. >> >> However, there is an FAQ detailing technique in this territory. >> >> FAQ . . Creating variables recording prop. of the other members of a group >> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox >> 4/05 How do I create variables summarizing for each >> individual properties of the other members of a >> group? >> http://www.stata.com/support/faqs/data/members.html >> >> and this also may be useful: >> >> FAQ . . Creating variables recording whether any or all possess some char. >> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox >> 2/03 How do I create a variable recording whether any >> members of a group (or all members of a group) >> possess some characteristic? >> http://www.stata.com/support/faqs/data/anyall.html >> >> On Sun, Feb 13, 2011 at 5:23 PM, Don Ruby <goofnmick@gmail.com> wrote: >> >>> Suppose I have the following data (excepting Ssmoke which I need to create): >>> >>> +--------------------------------------------------------+ >>> | Mid Sid Famid Msmoke Ssmoke | >>> |----------------------------------------------------------| >>> 1. | 1 2 1 0 1 | >>> 2. | 2 1 1 1 0 | >>> 3. | 3 4 2 1 0 | >>> 4. | 4 3 2 0 1 | >>> +--------------------------------------------------------+ >>> >>> Where Mid is a mother id, Sid is a sibling id, and Famid is a family >>> id. Msmoke indicates that the mother smoked. >>> >>> What is the simplest way to create a variable "Ssmoke" that equals 1 >>> if a sibling smoked, and 0 otherwise? (Note, there are families in >>> which there are more than 2 siblings.) >> * * 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/