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>From a "Standards" thread I saw this : "Linux should be as easy as Windows" I would like to point out that this is a thinking problem. A shift in thinking is required. That should say : "Open source and Free software should be as easy as Windows" In this way we allow someone running BSD, Solaris or some port of Debian to an old Dec AlphaServer

Perhaps, I should complement my previous e-mail question: I am trying to select variables through a quadratic discriminant analysis. It seems to me that a robust criterion is the value of the discriminatory power (i.e. the ratio of the separation of the class means to within-class variance) How can I obtain this ratio from V & R's qda() output ? Thanks (I hope this question is relevant) --

Hello, Does logistic regression really provide better results than lda or qda ? (my purpose is not classification but highlighting of discriminant variables). If this is true, where could I get an R script performing stepwise logistic regression ? Thanks -- Daniel AMORESE Lab. M2C "Morphodynamique Continentale et C?ti?re" UMR CNRS 6143 Caen/Rouen Centre de G?omorphologie UCBN

...# ############################### --------------------------------------------- Cemagref (French Institute of Agricultural and Environmental Engineering Research ) Unit? "Ecosyst?mes estuariens et poissons migrateurs amphihalins" (anciennement Unit? "Ressources aquatiques continentales") 50 avenue de Verdun F 33612 Cestas Cedex Tel + 33 (0)5 57 89 27 17 Fax + 33 (0)5 57 89 08 01 mailto:laurent.beaulaton at bordeaux.cemagref.fr http://www.laurent-beaulaton.fr/ http://www.bordeaux.cemagref.fr/rabx/