On Thu, 23 May 2013 09:40:44 -0400, Mister Mak wrote:
Hello,
I am new to Commons Math (3.2 on MacOS 10.5.8) and am struggling to
maximize a simple function. I think I need to use the optimization
classes, but the user guide [...]
The user guide needs updating.
http://commons.apache.org/proper/commons-math/userguide/optimization.html)
seems to refer mainly to functions that are deprecated according to
the
API. Mucking around through the API, I think I have found some other
functions that are not deprecated, but it's really not clear to me
how to
use them.
What I have done so far is:
import org.apache.commons.math3.analysis.*;
import org.apache.commons.math3.optim.nonlinear.scalar.noderiv.*;
import
org.apache.commons.math3.optim.nonlinear.scalar.ObjectiveFunction;
import org.apache.commons.math3.optim.nonlinear.scalar.GoalType;
then somewhere I define a mutlivariate function:
class TestFcMulti implements MultivariateFunction {
public double value(double[] par) {
return - par[0] * par[0];
}
}
but then the following code does not work:
public Test_MC() {
TestFcMulti tf = new TestFcMulti();
ObjectiveFunction obFc = new ObjectiveFunction(tf);
SimplexOptimizer so = new SimplexOptimizer(0.01, 0.01);
so.optimize(obFc, GoalType.MAXIMIZE); // Doesn't work
so.optimize(); // Doesn't work
}
Is there a simple example somewhere, or can someone explain what to
do?
What is the error?
Regards,
Gilles
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
