Hi Ken Am 14-08-2012 11:50, schrieb ken knoblauch: > Christof Kluß <ckluss <at> email.uni-kiel.de> writes: > >> But now I search a self-starter for y = a + b * c^x > > You might be able to adapt the SS.calib function > from the psyphy package for this. > It was designed to fit gamma functions to the > luminance vs frame buffer values measured on CRT > screens. But the functional form is similar.
thank you for the hint. I will test that function too. But it seems to be something like y = a + b * x^c and not y = a + b * c^x Greetings Christof ______________________________________________ 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.
