[R-sig-Geo] self-starting non linear model

[Tom Gottfried]

Hi Anna,

maybe this more a subject to be discussed on R-help?

Tom

Am 06.03.2011 20:55, schrieb Anna Gretschel:
> Hi List!
> 
> I want to apply a selfstarting Michaelis-Menten-Model to my data:
> SSmicmen {stats}
> 
> I use thist function in the following way:
> model<-nls(distance~SSmicmen(watercontent, Vm, K))
> 
> When I want to compute it I get the error message:
> 
>                                                Fehler in lm.fit(x, y,
> offset = offset, singular.ok = singular.ok, ...) :
>                                                NA/NaN/Inf in externem
> Funktionsaufruf (arg 4)
> 
> which would be in English: Error in lm.fit(x, y, offset = offset,
> singular.ok = singular.ok, ...) :
>                                               NA/NaN/Inf in external
> function call(arg 4)
> 
> Does this mean the function just does not fit my data or is there
> anything I overlooked - any mistake I made defining the model???
> 
> Anna
> 
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