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suggestions argument in rbga function in genalg package
2 messages · Joseph Boyer, Enrico Schumann
I do not use this package, but a quick look at the code shows this.
if (!is.null(suggestions)) {
# [deleted]
suggestionCount = dim(suggestions)[1]
So 'suggestions' needs to have a dim argument (while the documentation
speaks of an 'optional list of suggested chromosomes'). You could try
as.matrix(c(1,0.1,10, 100,1,100,1))
But I cannot tell if that solves your problem since you have not
provided your objective function (ie, you have not provided the
"commented, minimal, self-contained, reproducible code" that the footer
of this message speaks about).
Regards,
Enrico
Am 22.09.2011 20:46, schrieb Joseph Boyer:
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. [[alternative HTML version deleted]]
______________________________________________ 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.
Enrico Schumann Lucerne, Switzerland http://nmof.net/