Dear R users,
I'm trying to do betareg on my dataset.
Dependent variable is not normally distributed and is proportion (of condom
use (0,1)).
But I'm having problems:
gyl<-betareg(cond ~ alcoh + drug, data=results)
Error in optim(par = start, fn = loglikfun, gr = gradfun, method = method, :
initial value in 'vmmin' is not finite
Why is R returning me error in optim()?
What should I do?
In advance, thank you for advice!
--
**************************
Vlatka Matkovic Puljic
+32/ 485/ 453340
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