[R] how can I ordinal regression??

What function and package I use to conduct ordinal regression?? My data is composed 2colums and 180rows. The first colum indicate level of mass and second colum is intensity. So, I want to calculate how much intensity are related mass. [[alternative HTML version deleted]]

Re: [R] Excel Export in a beauty way

Hi, I would just add, for myself, not for others who have developed R to Excel export packages, that the efficient export of data from R to a native Excel file is the priority. Formatting (columns, fonts, colors, etc.) in the resultant spreadsheets (for me) was not. There are also some

Re: [R] contrasts

On 03-Jun-09 17:50:38, Ricardo Arias Brito wrote: Hi all, I want t use a contrasts in adjusted regression (lm()) for a factor with four levels, compared the coefficients first with second, first with third, ..., third with fourth. Someone can help with a contrast matrix to be used. I tried

Re: [R] Need help understanding output from aov and from anova

Hi Suman, What version of R are you running? In R 2.9.0 running your first example yields a warning Warning message: In anova.lm(lm(vtot ~ fac)) : ANOVA F-tests on an essentially perfect fit are unreliable so some adept R developer has taken the time to figure out how to warn you about