Dear Prof Ripley, could you be just a little more specific?
Thanks a lot daniel ________________________________________ Feladó: Prof Brian Ripley [rip...@stats.ox.ac.uk] Küldve: 2013. július 4. 14:14 To: Dániel Kehl Cc: r-help Tárgy: Re: [R] polr? On 04/07/2013 12:59, Dániel Kehl wrote: > Dear R users, > > I have a dataset with two ordered variables, tr_x1 and tr_y1. A crosstable of > them can bee seen below. > > tr_x1 > tr_y1 -1 0 1 > -1 629 100 629 > 0 1396 4353 1443 > 1 668 126 655 > > It is clear that if tr_x1 is 0, it has an effect on tr_y1. A chi-square > statistic is clearly showing this with a low p-value. > Is there a regression-based method you would offer? I tried polr from MASS > package but without finding a significant coefficient, because the columns > for tr_x1 and tr_y1 are similar. Your mistake is testing coefficients, not overall fit. > Thank you for your help! > > daniel > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.