[R] help_transformation

From: Indermaur Lukas <Lukas.Indermaur_at_eawag.ch>
Date: Wed, 25 Jun 2008 13:56:03 +0200


heya,
i am fitting linear mixed effect model to a response Y. Y shows an s-shaped distribution when using QQ-plots (some zero values and some very high values). hence, which transformation should i apply that Y follows a normal distribution? any r-function/package available to do this?  

thanks for any hint,
regards,
lukas      

°°°
Lukas Indermaur, PhD student
eawag / Swiss Federal Institute of Aquatic Science and Technology ECO - Department of Aquatic Ecology
Überlandstrasse 133
CH-8600 Dübendorf
Switzerland  

Phone: +41 (0) 71 220 38 25
Fax : +41 (0) 44 823 53 15
Email: lukas.indermaur_at_eawag.ch
www.lukasindermaur.ch <
http://www.lukasindermaur.ch/>      



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