Hi all, some days ago I sent off a query on stepwise discriminat analysis and hardly got any reply. That's why I am trying this again now. I probably wasn;t specific enough the last time I did it. I now about the step function for glm etc. and I also know how to do discriminat analysis in R but I was wondering whether there is an equivalent of the step funcion for dicrimant analysis models? Any help would be very much appreciated. Thanks Janine ------------------------------------------ Janine Illian lecturer in statistics SIMBIOS School of Computing and Advanced Technologies University of Abertay Dundee Bell Street Dundee, DD1 1HG Scotland, UK Tel: +44-(0)1382-308488 Fax: +44-(0)1382-308537
stepwise discriminant analysis
2 messages · J.Illian@abertay.ac.uk, Brian Ripley
On Fri, 25 Apr 2003 J.Illian at abertay.ac.uk wrote:
Hi all, some days ago I sent off a query on stepwise discriminat analysis and hardly got any reply. That's why I am trying this again now. I probably wasn;t specific enough the last time I did it. I now about the step function for glm etc. and I also know how to do discriminat analysis in R but I was wondering whether there is an equivalent of the step funcion for dicrimant analysis models?
Not that I know of. If there were, it would not be what is usually known as `stepwise discriminant analysis', since that usually means a series of T tests, not selection by AIC.
Brian D. Ripley, ripley at 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