Dear all, I would like to know if I can compare by a significance test 2 models with different kind of parameters. Perhaps I am wrong but I think that we can only compare 2 models if one is a sub model of the other. Med venlig hilsen / Regards João Fadista Ph.d. studerende / Ph.d. student AARHUS UNIVERSITET / UNIVERSITY OF AARHUS Det Jordbrugsvidenskabelige Fakultet / Faculty of Agricultural Sciences Forskningscenter Foulum / Research Centre Foulum Genetik og Bioteknologi / Dept. of Genetics and Biotechnology Blichers Allé 20, P.O. BOX 50 DK-8830 Tjele Tel: +45 8999 1900 Direct: +45 8999 1900 Mobile: +45 E-mail: Joao.Fadista@agrsci.dk <mailto:Joao.Fadista@agrsci.dk> Web: www.agrsci.dk <http://www.agrsci.dk/> ________________________________ Tilmeld dig DJF's nyhedsbrev / Subscribe Faculty of Agricultural Sciences Newsletter <http://www.agrsci.dk/user/register?lan=dan-DK> . Denne email kan indeholde fortrolig information. Enhver brug eller offentliggørelse af denne email uden skriftlig tilladelse fra DJF er ikke tilladt. Hvis De ikke er den tiltænkte adressat, bedes De venligst straks underrette DJF samt slette emailen. This email may contain information that is confidential. Any use or publication of this email without written permission from Faculty of Agricultural Sciences is not allowed. If you are not the intended recipient, please notify Faculty of Agricultural Sciences immediately and delete this email. [[alternative HTML version deleted]]
On Fri, 30 Mar 2007, Jo?o Fadista wrote:> Dear all, > > I would like to know if I can compare by a significance test 2 models > with different kind of parameters. Perhaps I am wrong but I think that > we can only compare 2 models if one is a sub model of the other. > >The literature you seek is on 'non-nested' models. Here is a start: Bradley Efron Comparing non-nested linear models J. of the Amer. Stat'l. Assn. 79:791-803,1984 Google is your friend. Try 'non-nested test' and 'non-nested model' and you will get many hits. [snip] Charles C. Berry (858) 534-2098 Dept of Family/Preventive Medicine E mailto:cberry at tajo.ucsd.edu UC San Diego http://biostat.ucsd.edu/~cberry/ La Jolla, San Diego 92093-0901