sorry just jet realized the note: *Note:*please don't send patches or
attachments to any of the mailing lists. Patches are best handled via
theIssue Tracking
<http://commons.apache.org/proper/commons-math/issue-tracking.html>system.
Otherwise, please upload the file to a public server and include the URL
in the mail.
so here is the url: http://snipt.org/Ahihj0
Hello
I really need your help to get the LevenbergMarquardtOptimizer up and
running. Please see the attached compileable code.
No matter how I try to return the gradients an Exception will raise ...
hmmm get stuck ...
Thanks
Christian
Stack:
run:
true
tc 2012.2765286077058
Test A,B,C1,C2 [501.2905381669908, 245.5260642192166, -212.706661273106,
400.8921485235668]
Curve fitting ...
Exception in thread "main"
org.apache.commons.math3.exception.ConvergenceException: illegal state:
unable to perform Q.R decomposition on the 107x2 jacobian matrix
at
org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer.qrDecomposition(LevenbergMarquardtOptimizer.java:884)
at
org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer.doOptimize(LevenbergMarquardtOptimizer.java:331)
at
org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer.doOptimize(LevenbergMarquardtOptimizer.java:113)
at
org.apache.commons.math3.optim.BaseOptimizer.optimize(BaseOptimizer.java:143)
at
org.apache.commons.math3.optim.BaseMultivariateOptimizer.optimize(BaseMultivariateOptimizer.java:66)
at
org.apache.commons.math3.optim.nonlinear.vector.MultivariateVectorOptimizer.optimize(MultivariateVectorOptimizer.java:87)
at
org.apache.commons.math3.optim.nonlinear.vector.JacobianMultivariateVectorOptimizer.optimize(JacobianMultivariateVectorOptimizer.java:83)
at
org.apache.commons.math3.optim.nonlinear.vector.jacobian.AbstractLeastSquaresOptimizer.optimize(AbstractLeastSquaresOptimizer.java:197)
at
org.apache.commons.math3.fitting.CurveFitter.fit(CurveFitter.java:172)
at
org.apache.commons.math3.fitting.CurveFitter.fit(CurveFitter.java:136)
at
tryout.Sornette2NoLogPriceLevenberg.main(Sornette2NoLogPriceLevenberg.java:62)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
