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cfq_data
2012 Jan 25
1
solving nls
Hi,
I have some data I want to fit with a non-linear function using nls, but it
won't solve.
> regresjon<-nls(lcfu~lN0+log10(1-(1-10^(k*t))^m), data=cfu_data,
> start=(list(lN0 = 7.6, k = -0.08, m = 2)))
Error in nls(lcfu ~ lN0 + log10(1 - (1 - 10^(k * t))^m), data = cfu_data, :
step factor 0.000488281 reduced below 'minFactor' of 0.000976562
Tried to increase minFactor and number of iteration, but resulted in
extremely high number of it...