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

[ken knoblauch]

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 designed to fit gamma functions to the 
luminance vs frame buffer values measured on CRT
screens.  But the functional form is similar.


> thx
> Christof
> 
> 

best,

Ken

-- 
Kenneth Knoblauch
Inserm U846
Stem-cell and Brain Research Institute
Department of Integrative Neurosciences
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