Hi, > > thanks for the reply. But i wonder what is the input for value and gradient. > in DifferentiableMultivariateRealFunction this needs to be a double array > but what needs to be provided there? The parameters for the function to > optimize? > > Thank you very much again > > Andreas > Do please have a look to the examples, as your question (and my answer) is too vague if not supported by proper code. I guess the answer to your question is 'yes', the double[] array is indeed the set of parameters, but again, do check the examples, I would not like to be misguiding you. Besides the user guide which should provide you with the answer, have a look to this implementation [1], line 153. In this implementation, x[i] and y[i] are the data points, yhat[i] are the model predictions, and a[] are the parameters. You should be able to find your way with this example. Good luck, Sébastien
[1] http://svn.apache.org/viewvc/commons/proper/math/trunk/src/test/java/org/apache/commons/math3/optimization/general/StatisticalReferenceDataset.java?view=markup --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
