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Dear Allstatters, Can anyone clarify for me what is the fundamental difference between Discriminant Analysis & Multinomial Logistic Regression? When I look these up on Wikipedia, neither article makes any reference to each other yet to my mind both have the same goal in mind i.e. to classify objects into one of multiple categories using a number of predictor/explanatory variables. I ask because my version of R doesn't have Discriminant Analysis installed but it does have Multinomial Logistic Regression and I wondering if there is a need to install an R package to do so. Regards Nigel Marriott Chartered Statistician <http://www.marriott-stats.com/> www.marriott-stats.com Ground Floor, 21 Marlborough Buildings, Bath BA1 2LY, United Kingdom Tel (mobile) +44 (0)773 4069997 Tel (office) +44 (0)1225 489033 Fax +44 (0)870 6221969 Marriott Statistical Consulting Limited, Company No. 5577275, VAT No. 883304029 Registered in England, Registered Office - Equity House, 4-6 School Road, Tilehurst, Reading, RG31 5AL You may leave the list at any time by sending the command SIGNOFF allstat to [log in to unmask], leaving the subject line blank.