Displaying 1 result from an estimated 1 matches for "lntmat".
Did you mean:
latmat
2007 Jan 16
0
nlme : convergence problem and other errors
...hese error messages?
Furthermore, do you know if it is possible to fix the values of the
fixed effects so that the model only has to estimate the random effects?
Thank you for your help and answers.
Regards,
Thomas Brunel
pds.fit<-nlme(pds~(exp (lna)/(exp (lnb) + 1/(1 + exp(1000 * (exp
(lntmat) - t + 0.5))) * exp (lnc)))^4 * (1 - (1 - ( 0.051 * (1 - 1/(1 +
exp(1000 * (exp (lntmat) - t + 0.5)))) + (exp (lna)/exp (lnb))^4 * (1 -
(1 - (0.051)^0.25 * (exp (lnb)/exp (lna))) * exp( - ((exp (lnb) * exp
(lntmat))/4)))^4 * 1/(1 + exp(1000 * (exp (lntmat) - t + 0.5))))^0.25 *
((exp (lnb) + 1/...