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Minor PSymbolicRegression update

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This commit is contained in:
Marcel Kronfeld 2011-05-04 11:39:06 +00:00
parent 4f245074cd
commit 216a10b893
1 changed files with 22 additions and 0 deletions
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22
src/eva2/server/go/problems/PSymbolicRegression.java
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@ -603,4 +603,26 @@ public class PSymbolicRegression extends AbstractOptimizationProblem implements
} else return 0; } else return 0;
} else return 0; } else return 0;
} }
/**
* Test method for an arbitrary string coded program.
*
* @param nodeStr
* @return
*/
public static double[] evalNodeString(String nodeStr) {
AbstractGPNode node = AbstractGPNode.parseFromString(nodeStr);
PSymbolicRegression regrProb = new PSymbolicRegression();
GPIndividualProgramData indy = new GPIndividualProgramData();
indy.SetPGenotype(node, 0);
regrProb.evaluate(indy);
System.out.println("Evaluated individual: " + indy);
return indy.getFitness();
}
// public static void main(String[] args) {
// String bestStudentSol = "-(abs(abs(-(-(X0, -(-(X0, X0), X0)), sin(abs(-(-(X0, X0), X0)))))), -(-(sin(-(abs(X0), -(-(-(X0, X0), X0), abs(abs(X0))))), -(-(abs(abs(abs(X0))), -(-(-(X0, X0), X0), abs(-(X0,X0)))), sin(-(abs(X0), sin(sin(X0)))))), X0))";
//// String bestStudentSol = "-(abs(-(sqrt(-(-(abs(1.0), X0), X0)), -(sqrt(-(sqrt(1.0), sqrt(pi))), X0))),-(-(sin(sqrt(-(-(sqrt(1.0), X0), pi))), abs(X0)), -(sqrt(pi), -(sqrt(sqrt(-(abs(1.0), X0))),X0))))";
// evalNodeString(bestStudentSol);
// }
} }