The most important thing is the point termed "C" (on the image): http://r.789695.n4.nabble.com/file/n3926631/courbe_temp%C3%A9rature.png
which is the first point (time, temperature) where temperature stabilizes after the temperature drop (end of feeding). The definition of that particular point is : The point where temperature stabilizes within 1 sd (calculated from the prefeeding temperature) over a minimum of 10 minutes. Can someone help me writing the code for it? Thank you very much, Joanie -- View this message in context: http://r.789695.n4.nabble.com/Find-a-particular-point-on-a-curve-tp3882721p3926631.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.