[R] self-starter functions for y = a + b * c^x

Hi there are some predefined self-start functions, like SSmicmen, SSbiexp, SSasymp, SSasympOff, SSasympOrig, SSgompertz, SSflp, SSlogis, SSweibull, Quadratic, Qubic, SSexp (nlrwr) Btw, do you know graphic examples for this functions? The SSexpDecay (exponential decay) for y = (y0 -

Re: [R] self-starter functions for y = a + b * c^x

Christof Kluß ckluss at email.uni-kiel.de writes: But now I search a self-starter for y = a + b * c^x Do you know a package that implement such self-starter or is there a easy way to do it myself? You might be able to adapt the SS.calib function from the psyphy package for this. It was

Re: [R] self-starter functions for y = a + b * c^x

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

Re: [R] self-starter functions for y = a + b * c^x

On 2012-08-14 00:09, Christof Kluß wrote: Hi there are some predefined self-start functions, like SSmicmen, SSbiexp, SSasymp, SSasympOff, SSasympOrig, SSgompertz, SSflp, SSlogis, SSweibull, Quadratic, Qubic, SSexp (nlrwr) Btw, do you know graphic examples for this functions? The SSexpDecay

Re: [R] self-starter functions for y = a + b * c^x

Am 14-08-2012 19:40, schrieb Peter Ehlers: On 2012-08-14 00:09, Christof Kluß wrote: But now I search a self-starter for y = a + b * c^x Can't you just reparameterize with c^x = exp(x * log(c)) ? oh, I've missed this... thank you very much! Greetings Christof