search for: attackr2_n

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2012 Apr 18
1
error estimating parameters with mle2
...data5) I get following error message Error in optim(par = c(4.5, 0.16), fn = function (p) : function cannot be evaluated at initial parameters Can someone tell me what I'm doing wrong? I used estimate starting values which were predicted with the nls function RogersI_N <- nls(FR~attackR2_N+u_N*N0,start=list(attackR2_N=1,u_N=4),control=list(maxiter=10000)) For some other models, I do the exact same thing and it works well, so I don't understand why this one doesn't work........................ Kind regards, Met vriendelijke groeten, Joachim Don't waste paper! Think abo...