Hello again I recently downloaded the gcl package, which "computes a fuzzy rules or tree classifier from data". It is very interesting and is giving good results. However, rather than return a list, it returns a function. Per the example in the documentation: library(gcl) library(datasets) data(iris) classifier <- gcl(iris, nlev = 5) then classifier is quite a long function. The article which is cited in the documentation: Vinterbo et al (2005): Small, fuzzy and interpretable gene expression based classifiers, Bioinformatics, 21, 1964-1970 notes that the rules can be extracted, but neither the article nor the documentation indicates how this can be done in a reasonable manner I have written to the author of the package, aw well, but have not heard back. He may be on vacation. Thanks as always Peter L. Flom, PhD Brainscope, Inc. 212 263 7863 (MTW) 212 845 4485 (Th) 917 488 7176 (F) [[alternative HTML version deleted]]