Hello, I'm trying to do a non linear regression using the LevenbergMarquardtOptimizer.
I have copied the proposed Demo code at: http://commons.apache.org/proper/commons-math/userguide/optimization.html and I get the following error at the java compilation time: "The method optimize(OptimizationData..) in the type AbstractLeastSquaresOptimizer is not applicable for the arguments (int, QuadraticProblem, double[], double[], double[])" It seems that the optimize method employed in the Demo code is not the appropriate one. I tried to change the imports, but that does not work. Any help will be appreciated. Thanks. Eric **** ... LevenbergMarquardtOptimizer optimizer = new LevenbergMarquardtOptimizer(); ... PointVectorValuePair optimum = optimizer.optimize(100, problem, problem.calculateTarget(), weights, initialSolution); ****
