... and so you need f(x) = abs(x^2 - 25),
though I have no idea if GA handles non-continuously differentiable
functions.
-- Bert
On Sun, Sep 25, 2022 at 1:44 AM Eric Berger <ericjberger at gmail.com> wrote:
?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
-------------------
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,
10)
summary(GA)
-------------------------
Thank you,
Barry King
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