[R] suggestions argument in rbga function in genalg package
Frank Schwidom
schwidom at gmx.net
Mon Apr 9 08:34:20 CEST 2012
On Thu, Sep 22, 2011 at 06:46:23PM +0000, Joseph Boyer wrote:
> Would someone be so kind as to provide example code where they use the suggestions argument in the rgba function
> In genalg? I can't get it to work.
>
> The following code works just fine:
>
> GenFit <-rbga(Lower, Upper, evalFunc = evaluate)
>
> Lower and Upper are each numeric vectors with 7 elements. Evaluate is an objective function.
> However, when I want to use a suggested chromosome, I get an error message. My code is
>
> start <- c(1,0.1,10, 100,1,100,1)
>
> suggestions <- list(start)
>
> GenFit <-rbga(Lower, Upper, suggestions = suggestions, evalFunc = evaluate)
>
> The error message is:
>
> Error in 1:suggestionCount : argument of length 0
>
> Thanks.
rbga( c( -1, -1), c( 1, 1), evalFunc= function( string){ sum(
string**2)**0.5}, suggestions=t( as.data.frame( c( 0, 0))))
Regards
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