r-square for non-linear regression
Not proof, but example of precedent for r-sq.: Juliano, S. A., and F. M. Williams. 1987. A comparison of methods for estimating the functional response parameters of the random predator equation. Journal of Animal Ecology 56:641-653.
At 04:45 AM 7/16/2002, Dieter Menne wrote:
We have extracted parameters from physiological measurements by fitting SSlogis-like curves with nlsList and nlme. We presented residuals plot in a paper, but a referee argues that these cannot be included (too technical), and r-square values should be given instead to compare the goodness of fit with those of other authors. I remember that 30 years ago in my stat 101, I learned that r-square is nonsense for non-linear fits, but I cannot find a referee-proof citation for this. Probably SAS does it (I know what Bill Venables will say about this argument...). Can anybody provide me a citation on r-square for/against non-linear fits, or tell me that I am wrong? Dieter --------------------------------------- Dr. Dieter Menne Biomed Software 72074 T?bingen Tel (49) (7071) 52176 FAX (49) (7071) 55 10 46 dieter.menne at menne-biomed.de www.menne-biomed.de -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
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