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From | riyadh shamsan <onlineriyadh@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | Re: st: interactions |
Date | Wed, 31 Mar 2010 21:14:36 +0100 |
it is 10.1 On Wed, Mar 31, 2010 at 7:58 PM, Martin Weiss <martin.weiss1@gmx.de> wrote: > > <> > What`s your -version- of Stata? If other than 11, you are asked to say so! > > > HTH > Martin > > > -----Original Message----- > From: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of riyadh shamsan > Sent: Mittwoch, 31. März 2010 20:57 > To: statalist@hsphsun2.harvard.edu > Subject: Re: st: interactions > > i didn't work! > > can't find fvvarlist > > On Wed, Mar 31, 2010 at 7:48 PM, Martin Weiss <martin.weiss1@gmx.de> wrote: >> >> <> >> >> So if Riyadh wanted domestic cars with very good repair record as the > reference group: >> >> >> ******* >> sysuse auto, clear >> reg price weight ib1.rep78#ib0.foreign >> ******* >> >> >> HTH >> Martin >> >> -----Original Message----- >> From: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Maarten buis >> Sent: Mittwoch, 31. März 2010 20:38 >> To: statalist@hsphsun2.harvard.edu >> Subject: Re: st: interactions >> >> --- On Wed, 31/3/10, riyadh shamsan wrote: >>> need to make interaction between 2 >>> cat variables each with different >>> levels. (Ethnicity coded as 1,2,3 and 4) & >>> (co-morbidity coded as 0,1,2,3) >>> I need my reference group to be the group with ethnicity 1 >>> & co-morbidiy 0 and compare other combination with this >>> group >> >> The first line of your question got zapped by >> by the listserver (this sometimes happens on the >> statalist), so I am infering some of the details >> of your question. >> >> The answer would something like: >> regress y ib1.ethnicity##ib0.comob >> >> See -help fvvarlist-. >> >> Hope this helps, >> Maarten >> >> -------------------------- >> Maarten L. Buis >> Institut fuer Soziologie >> Universitaet Tuebingen >> Wilhelmstrasse 36 >> 72074 Tuebingen >> Germany >> >> http://www.maartenbuis.nl >> -------------------------- >> >> >> >> >> * >> * 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/ >> > > * > * 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/ > * * 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/