Dear list,

I have this nls model and trying to calculate the confidence interval for
some parameter. I found if I use the default value level=0.95, confint can
calculate a value; when I change the level=0.9, then it return  :Error in
prof$getProfile() : number of iterations exceeded maximum of 50.

The strange thing is if I use level=0.8, it is working again. Why is that?
How do I get an CI value for any level? Thanks.

Jun Shen

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