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.
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Enrico Schumann
Lucerne, Switzerland
http://nmof.net/
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