[R] ordinal regression

[Iasonas Lamprianou]

Dear colleagues,

i am carrying out an ordinal regression model. I try it on SPSS but I "flirt" with R as well. I have a few questions.

1. What is the most reliable/tested/trusted package for ordinal regression in the R world? 

2. Also, I have a statistical question. What is the danger of having to many 'empty cells' in ordinal regression? How many empty cells are too many? Do you have a reference for me to read?

Thank you for the support


Dr. Iasonas Lamprianou


Assistant Professor (Educational Research and Evaluation)
Department of Education Sciences
European University-Cyprus
P.O. Box 22006
1516 Nicosia
Cyprus 
Tel.: +357-22-713178
Fax: +357-22-590539


Honorary Research Fellow
Department of Education
The University of Manchester
Oxford Road, Manchester M13 9PL, UK
Tel. 0044  161 275 3485
iasonas.lamprianou at manchester.ac.uk