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From |
Milena Przheska <[email protected]> |

To |
[email protected] |

Subject |
Re: st: -foreach- loop to fit regression at each level of a variable |

Date |
Tue, 19 Nov 2013 14:38:09 +0100 |

With all due respect, I doubt that everyone that posts a question has read all 11000 pages of documentation. I felt overwhelmed, so I asked for help. And by the way, even with all the syntax correct, I don't get any estimates, which was the essence of my question. On Tue, Nov 19, 2013 at 2:27 PM, Nick Cox <[email protected]> wrote: > My point was that I had already explained why -foreach- with -of- did > not work without a key word indicating list type. Also, the specific > FAQ referred to does explain at length how to approach exactly your > problem. > > The Statalist FAQ does underline an expectation that people do try to > read the documentation. > > Nick > [email protected] > > > On 19 November 2013 13:10, Milena Przheska > <[email protected]> wrote: >> Nick, >> >> Judging by your tone I realize I have wasted your patience, but my >> question was whether it is even possible to do what I wanted, because >> I just wanted to know whether I am on the right path, or trying >> something that Stata cannot accept. >> >> In any case, thank you for your reply. >> >> On Tue, Nov 19, 2013 at 1:57 PM, Nick Cox <[email protected]> wrote: >>> Please read the whole of my reply and the FAQ referred to. >>> >>> Nick >>> [email protected] >>> >>> >>> On 19 November 2013 12:47, Milena Przheska >>> <[email protected]> wrote: >>>> Yes, I fixed that with the following: >>>> >>>> >>>> levelsof sample, local(sample_levels) >>>> >>>> but the -foreach- still does not work >>>> >>>> >>>> On Tue, Nov 19, 2013 at 1:43 PM, Nick Cox <[email protected]> wrote: >>>>> Also, there is no legal syntax >>>>> >>>>> -egen local- >>>>> Nick >>>>> [email protected] >>>>> >>>>> >>>>> On 19 November 2013 12:42, Nick Cox <[email protected]> wrote: >>>>>> Just looking at the help for a few seconds establishes that >>>>>> >>>>>> 1. There is no -levelsof()- function for -egen-. >>>>>> >>>>>> 2. -foreach ... of- requires a key word specifying a list type to follow. >>>>>> >>>>>> Also you should learn in type in Stata >>>>>> >>>>>> . search foreach >>>>>> >>>>>> to find resources. In this case, >>>>>> >>>>>> http://www.stata.com/support/faqs/data-management/try-all-values-with-foreach/ >>>>>> >>>>>> is most focused on your problem. >>>>>> >>>>>> Nick >>>>>> [email protected] >>>>>> >>>>>> >>>>>> On 19 November 2013 12:34, Milena Przheska >>>>>> <[email protected]> wrote: >>>>>> >>>>>>> I am trying to fit the same logistic regression model using different >>>>>>> samples from a data set and I am wondering if it is even possible to >>>>>>> use a -foreach- loop to estimate regression models for each sample >>>>>>> (indicated by a variable). >>>>>>> >>>>>>> I use the variable 'sample' to indicate the sample, but instead of >>>>>>> writing the command over and over for each sample, I tried to do this >>>>>>> with a -foreach- loop, something like this: >>>>>>> >>>>>>> egen local sample_level = levelsof(sample) >>>>>>> >>>>>>> foreach n of sample_level { >>>>>>> logistic outcome var1 var2 var3 if sample_level==`n', vce(cluster id) >>>>>>> } >>>>>>> >>>>>>> As always, I would appreciate your help. >>> * >>> * 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/ >> * >> * 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/ > * > * 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/ * * 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/

**Follow-Ups**:

**References**:**st: -foreach- loop to fit regression at each level of a variable***From:*Milena Przheska <[email protected]>

**Re: st: -foreach- loop to fit regression at each level of a variable***From:*Nick Cox <[email protected]>

**Re: st: -foreach- loop to fit regression at each level of a variable***From:*Nick Cox <[email protected]>

**Re: st: -foreach- loop to fit regression at each level of a variable***From:*Milena Przheska <[email protected]>

**Re: st: -foreach- loop to fit regression at each level of a variable***From:*Nick Cox <[email protected]>

**Re: st: -foreach- loop to fit regression at each level of a variable***From:*Milena Przheska <[email protected]>

**Re: st: -foreach- loop to fit regression at each level of a variable***From:*Nick Cox <[email protected]>

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