[R] "Optimx Package" Error

[Jeff Newmiller]

This is operator error. Do not attempt to optimize over an infinite range.
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Sent from my phone. Please excuse my brevity.

nserdar <snes1982 at hotmail.com> wrote:

>estimate<- optimx(init.par,Linn,gr=NULL,method= "L-BFGS-B",
>hessian=TRUE,
>control =
>list(trace=1),lower=c(0,0,0,-Inf,-Inf,-Inf,-Inf,-Inf,-Inf,-Inf),upper=c(1,1,1,Inf,Inf,Inf,Inf,Inf,Inf,Inf))
>fn is  Linn 
>Function has  10  arguments
>par[ 1 ]:  0   <? 0   <? 1     In Bounds           
>par[ 2 ]:  0   <? 0   <? 1     In Bounds   In Bounds          
>par[ 3 ]:  0   <? 0   <? 1     In Bounds   In Bounds   In Bounds       
> 
>par[ 4 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds  
>In
>Bounds        
>par[ 5 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds  
>In
>Bounds   In Bounds       
>par[ 6 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds  
>In
>Bounds   In Bounds   In Bounds      
>par[ 7 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds  
>In
>Bounds   In Bounds   In Bounds   In Bounds     
>par[ 8 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds  
>In
>Bounds   In Bounds   In Bounds   In Bounds   In Bounds    
>par[ 9 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds  
>In
>Bounds   In Bounds   In Bounds   In Bounds   In Bounds   In Bounds   
>par[ 10 ]:  -Inf   <? 1   <? Inf     In Bounds   In Bounds   In Bounds 
> In
>Bounds   In Bounds   In Bounds   In Bounds   In Bounds   In Bounds   In
>Bounds  
>Error in optimx(init.par, Linn, gr = NULL, method = "L-BFGS-B", hessian
>=
>TRUE,  : 
>  Cannot evaluate function at initial parameters
>
>Please let me know how to deal with this problem.
>
>Regards,
>Serdar
>
>
>
>--
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>
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