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nserdar

2012-Oct-10 08:12 UTC

[R] "Optimx Package" Error

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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Jeff Newmiller

2012-Oct-10 09:06 UTC

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[R] "Optimx Package" Error

This is operator error. Do not attempt to optimize over an infinite range.
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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
>
>
>
>--
>View this message in context:
>http://r.789695.n4.nabble.com/Optimx-Package-Error-tp4645669.html
>Sent from the R help mailing list archive at Nabble.com.
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

R help - Oct 2012 - "Optimx Package" Error

[R] "Optimx Package" Error

[R] "Optimx Package" Error