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I want to fit COMPoisson regression and showed this error:

L-BFGS-B needs finite values of 'fn'

I have 115 participant with two independent variable(ADT, HV) & dependent variable(Cr.fatal).

syntax:

library(COMpoissonReg)

comp3<-glm.cmp(CR.fatal ~ADT+HV,data = cdata)

output:

Error in optim(par.init, loglik, method = optim.method, control = optim.control, :
L-BFGS-B needs finite values of 'fn'

user20650
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Parviz Shahmirzalou
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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Community Dec 05 '21 at 01:50
  • thanks a lot , it`s simple. we want to fit a Com-poisson regression in package COMpoissonReg but R Showed this error. – Parviz Shahmirzalou Dec 07 '21 at 07:23
  • In fact, we have to add a function Optim to codes but where to write? – Parviz Shahmirzalou Dec 07 '21 at 07:24
  • Hi, it would be good if you could edit your question with a [reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) – user20650 Dec 09 '21 at 13:07

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