Dear Dmitry, Take a look at ?nls and its examples. HTH,
Jorge On Tue, May 12, 2009 at 5:44 PM, Dmitry Gospodaryov <gospodar...@rambler.ru>wrote: > I have the data: > for x: 2, 8, 14, 20, 26, 32, 38, 44, 50, 56, 62, 68, 74, > for y: 100, 99, 99, 98, 97, 94, 82, 66, 48, 38, 22, 10, 1. > y depends on x by equation: y = 100*exp(b*(1-exp(c*x))/c), > where b and c are coefficients. I need to find coefficients in this > equation for given data. How can I do that by means of R? > Thank you for advance. With regard, Dmitry. > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.