Hi listers, I have some data (see attachment), and I fitted it to the Asymptotic Regression Model with NLSstAsymptotic(xy). But I want to know the significance of these fits. How can I accomplish this using R? Can anyone suggest some theoretical reading on this subject? Thanks, Miguel -- Miguel Figueiredo IT student / Marine Biologist "Tem calma irm?o que a morte n?o precisa do teu sim, ? coisa certa, mais vale fazer da vida um festim." ALC -------------- next part -------------- A non-text attachment was scrubbed... Name: graph.png Type: image/png Size: 4005 bytes Desc: not available Url : https://stat.ethz.ch/pipermail/r-help/attachments/20040804/08dd5a86/graph.png