RE: [math]
Thanks Gilles, I'm using 3.0, will try again with latest. I'm minimising and if updating doesn't fix it I'll send some more information. Steve. >-Original Message- >From: Gilles [mailto:gil...@harfang.homelinux.org] >Sent: 27 February 2013 13:06 >To: user@commons.apache.org >Subject: Re: [math] > >Hello. > >On Wed, 27 Feb 2013 12:23:44 +, Glautier S.P. wrote: >> Dear list, I'd be grateful for any help on the following: >> >> I am using the CMAESOptimizer in the java commons.math3 library to >> generate a best fit for a model of learning to some experimental data. >> When I take the best parameters generated by the optimisation and plug >> them into the model, the fit between the model and the data doesn't >> match that which I expect on the basis of the optimisation output. In >> the cases I have checked the optimiser output best fit (the value part >> of the PointValuePair that comes at the end of the optimisation) is >> slightly larger than the value I get when I run the model using the >> parameters from the optimiser output (the point part of the >> PointValuePair that comes at the end of the optimisation). >> >> I have spent quite a long time checking my code and I can't find what >> the problem is but it occurred to me that there might be something >> about the optimisation output that I haven't understood properly. Am I >> correct to assuming that the parameters produced at the end of the >> optimisation are those that produced the associated best fit value? > >Yes, that should be so. > >Which version of Commons Math are you using? > >[To figure out what could have happened, it would be easier to have the actual >numbers for the parameters and associated cost and the function to be >optimized (minimized or maximized?).] > > >Best regards, >Gilles
[math]
Dear list, I'd be grateful for any help on the following: I am using the CMAESOptimizer in the java commons.math3 library to generate a best fit for a model of learning to some experimental data. When I take the best parameters generated by the optimisation and plug them into the model, the fit between the model and the data doesn't match that which I expect on the basis of the optimisation output. In the cases I have checked the optimiser output best fit (the value part of the PointValuePair that comes at the end of the optimisation) is slightly larger than the value I get when I run the model using the parameters from the optimiser output (the point part of the PointValuePair that comes at the end of the optimisation). I have spent quite a long time checking my code and I can't find what the problem is but it occurred to me that there might be something about the optimisation output that I haven't understood properly. Am I correct to assuming that the parameters produced at the end of the optimisation are those that produced the associated best fit value? Thanks, Steve. __ Dr. Steven Glautier, School of Psychology, Southampton University, Southampton, SO17 1BJ, UK. (+44) 023-8059-2589 Home page: http://www.southampton.ac.uk/psychology/about/staff/spg.page Research participation online: http://www.virtualpsyclab.net/
RE: search mailing lists
Thanks Benedikt, that's exactly what I wanted! -Original Message- From: Benedikt Ritter [mailto:brit...@apache.org] Sent: 02 February 2013 18:24 To: Commons Users List Subject: Re: search mailing lists 2013/2/2 Glautier S.P. > Hi, is there anyway to search the mailing list archives (apart from > manually)? > Hi Steve, what exactly do you mean with "manually"? I usually use MailMark [1] to search the lists. If you know, what you are looking for, it works pretty well. Regards, Benedikt [1] http://markmail.org/list/org.apache.commons.users/ > Thanks, Steve. > - > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > > - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
search mailing lists
Hi, is there anyway to search the mailing list archives (apart from manually)? Thanks, Steve. - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
