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| From | natalia malancu <natalia.malancu@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: margins & marginsplot when multiple outcomes are involved |
| Date | Wed, 29 Aug 2012 22:22:27 +0200 |
Hi Roger, thanks for your suggestions. I would look into the packages. I guess since I'm interpreting the mlogit results in terms in odds ratios , switching for illustrative purposes to probabilities might get a bit confusing...or maybe not. I'll give it a thought. Natalia On Wed, Aug 29, 2012 at 10:02 PM, Roger B. Newson <r.newson@imperial.ac.uk> wrote: > Presumably, you could use -margins- (with the -post- option), followed by > -nlcom-, to calculate scenario-specific odds. I don't know why anybody > should want to do this, though. > > Odds are usually a means to the end of probabilities, not the other way > round. My own packages -punaf-, -regpar-, -margprev- and -marglmean- are > front ends for -margins- and -nlcom-, and can be used to compute scenario > proportions and their differences and ratios after -mlogit-, using the > -predict()- option. > > Best wishes > > Roger > > > Roger B Newson BSc MSc DPhil > Lecturer in Medical Statistics > Respiratory Epidemiology and Public Health Group > National Heart and Lung Institute > Imperial College London > Royal Brompton Campus > Room 33, Emmanuel Kaye Building > 1B Manresa Road > London SW3 6LR > UNITED KINGDOM > Tel: +44 (0)20 7352 8121 ext 3381 > Fax: +44 (0)20 7351 8322 > Email: r.newson@imperial.ac.uk > Web page: http://www.imperial.ac.uk/nhli/r.newson/ > Departmental Web page: > http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/ > > Opinions expressed are those of the author, not of the institution. > > > On 29/08/2012 20:37, Scott Merryman wrote: >> >> Are relative odds the same thing as odds ratio? Can you use the >> probabilities in the margin0, margin1, and margin2 variables from my >> example to calculate the odds? >> >> Perhaps someone with actual experience using -mlogit- and odds can help >> out. >> >> Scott >> >> >> On Wed, Aug 29, 2012 at 12:13 PM, natalia malancu >> <natalia.malancu@gmail.com> wrote: >>> >>> Thank you so much, Scott. >>> Meanwhile I found a route using matrices, but your solution far more >>> elegant and fast. >>> One more question though: Is there a way is this context to use >>> relative odds rather than probabilities in the response? >>> >>> Best, >>> Natalia >> >> * >> * 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/