?ga states that ga() searches for the maximum of the fitness function.
The maximum of your fitness function is at x=0.
On Sun, Sep 25, 2022 at 4:52 AM Bert Gunter <bgunter.4567 at gmail.com>
wrote:
> We aren't supposed to do homework on this list.
>
> Bert Gunter
>
> On Sat, Sep 24, 2022 at 5:29 PM Barry King via R-help <
> r-help at r-project.org>
> wrote:
>
> > I am having difficulty solving for 5 in this coded snippet. Please
help.
> > -------------------
> > library(GA)
> >
> > # Solve for x where x^2 = 25, not x^2 <= 25
> >
> > f <- function(x)
> > {
> > x^2-25
> > }
> >
> > fitness <- function(x) -f(x)
> >
> > GA <- GA <- ga(type = "real-valued", fitness =
fitness, lower = 0, upper
> > > 10)
> > summary(GA)
> > -------------------------
> > Thank you,
> > Barry King
> >
> > --
> >
> >
> >
> >
> >
> >
> > This message is for the intended recipient only and may contain
> > confidential and privileged information. If you are not the intended
> > recipient, please return this message to the sender and delete this
> message
> > and any attachments from your computer.
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > 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.
> >
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>
[[alternative HTML version deleted]]