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| From | Matthew Hamilton <mwhamilton@gmail.com> |
| To | Statalist <statalist@hsphsun2.harvard.edu> |
| Subject | Re: st: problem using "vselect" |
| Date | Tue, 2 Jul 2013 09:56:28 -0400 |
There was a bug in -vselect- related to the fix() option, but it was fixed a while ago in the update. Thanks for your help. Much .ado about nothing... Matt On Fri, Jun 28, 2013 at 5:41 PM, <clindsey@stata.com> wrote: > Matthew Hamilton <mwhamilton@gmail.com> has a problem using the -vselect- > command. > >>Hi, I'm using the vselect package as follows: >> >>vselect depvar varlist, fix(indepvar1 indepvar2) best >> >>"Varlist" stands for a long list of candidate predictors. This list does not >>include indepvar1, indepvar2, or depvar. My understanding is that the option >>fix(indepvar1 indepvar2) forces the algorithm to give the "best" model that >>contains those two variables for each quantity of predictors. For example: >> >>vselect logI2010pc logGCI7_LaborMarketEfficiency >>logGovcontrolofcorruption logLFPR2010, fix(logGDP2010pc logWA2010pc) >>best >> >>However, I keep getting the error: "The Fixed variables overlap with >>the predictors/response." >> >>Based on my reading of vselect.ado, I am pretty sure it is supposed to >>give this error when varlist and the fix() vars are not disjoint. >>What's going on? Could this be a bug in vselect? > > We were unable to replicate Matthew's error. -vselect- was updated in 2011 to > correct a bug related to the -fix()- option. Maybe Matthew's version of > -vselect- is out of date. Matthew can get the current version of -vselect- > by typing > > . adoupdate st0213, update > > Charles Lindsey > Senior Statistician and Software Developer > StataCorp > clindsey@stata.com > * > * 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/ -- Matthew Hamilton, MS, MPH Social Scientist Futures Group Global One Thomas Circle NW, Washington, DC 2005 919-624-1502 || mwhamilton@gmail.com * * 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/