omzaz

 

Comments and Ratings by omzaz		View all 1 - 3 of 3
Updated	File	Comments	Rating
05 Nov 2009	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data. Author: Philipp Berens	Encountering same issue as Shiquan
07 Aug 2009	suplabel Places text as a title, xlabel, or ylabel on a group of subplots. Author: Ben Barrowes	potentially useful for me, but not until zoom/rotate issue is fixed.
07 Aug 2009	suplabel Places text as a title, xlabel, or ylabel on a group of subplots. Author: Ben Barrowes

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Files Tagged by omzaz					1 - 1 of 1
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
29 Jul 2010		EzyFit 2.40 A free curve fitting toolbox for Matlab Author: Frederic Moisy	curve, fit, vetor creating in wor..., fitting, interpolation, vectorise the columns...	218	60	4.83582 4.8 | 69 ratings

Files Matching omzaz's Watch List					View all 1 - 5 of 7
Updated		File	Tags	Downloads (last 30 days)	Comments	Rating
29 Jul 2010		EzyFit 2.40 A free curve fitting toolbox for Matlab Author: Frederic Moisy	curve, fit, vetor creating in wor..., fitting, interpolation, vectorise the columns...	218	60	4.83582 4.8 | 69 ratings
29 Jun 2010		Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data. Author: Philipp Berens	directional statistic..., circular statistics, circular, ang, circle, potw	160	28	4.25 4.2 | 12 ratings
23 Mar 2010		suplabel Places text as a title, xlabel, or ylabel on a group of subplots. Author: Ben Barrowes	super, title, subplot, label, annotation, group	261	22	3.83333 3.8 | 18 ratings
12 Mar 2010		MyRegression A simple function on LS linear regression with many informative outputs Author: Giuseppe Cardillo	statistics, probability, leastsquares linear r...	36	6	3.71429 3.7 | 7 ratings
17 Dec 2009		Polyfitn N-d polynomial regression model Author: John D'Errico	approximation, surface, linear regression, fit, interpolation, polynomial	185	38	4.43478 4.4 | 25 ratings

Comments and Ratings Matching omzaz's Watch List			1-5 of 197
Date	File	Comment by	Comments	Rating
04 Sep 2010	suplabel Places text as a title, xlabel, or ylabel on a group of subplots.	Gemma	Thank you very much.. i know have some awesomely titled plots :)	4
31 Aug 2010	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Kourosh	Excellent toolbox!!! Thanks Philipp!	5
30 Aug 2010	Polyfitn N-d polynomial regression model	Martin Kaszynski	Great tool, especially in combination with "gapolyfitn".	4
15 Jul 2010	EzyFit 2.40 A free curve fitting toolbox for Matlab	Matthias	You're a champion for creating this! Thanks very much... I do have a couple of questions I would like to ask: When you say "There is no way for the moment to change this number of iterations in EzyFit", I am a bit confused by this. In fminsearch the default for 'MaxInter' and 'MaxFunEvals' are both '200*numberOfVariables'. I have set these to 2000000*numberOfVariables but I still run into the exact same error when using: ezfit(x,y, a1*exp(-b1*x)+a2*exp(-b2*x)+y0) The error is: Exiting: Maximum number of function evaluations has been exceeded - increase MaxFunEvals option. Current function value: 30502.906917 Also, since MaxInter and MaxfunEvals both must be integer values, I do not understand how the iteration above can have decimal values. Or maybe I am misinterpreting it? The other thing I wanted to say is that if run fminsearch and call fitfun as per the code below, fminsearch is able to generate a perfect 3 exponent decay function in 175 iterations (i.e., much lower than 30502.906917). I should think ezfit should be able to achieve the exact same result if allowed to iterate within definable constraints (see TollX and TollFun below), because it also uses fminsearch. Finally, probably a dumb question, how come 'showfit' will work when I supply a 3 (or 2) exponent function but ezfit fails with the above iteration error? Looking forward to reading your answers......this is otherwise a brilliant toolbox. Best regards, Matthias code: ------- % Define initial paramters t = x; y = y; % Grab x and y values generated in ginput TolFun = .000000001; TolX = 0.1; % TolFun = Termination tolerance on the function value % TolX = Termination tolerance on x % Plot x and y set(0,'DefaultFigureWindowStyle','docked') figure;plot(t,y,'ro') hold on h = plot(t,y,'b'); hold off title('Input data') start = [0;0;0]; % Define starting lambdas (initial guesses) outputFcn = @(x,optimvalues,state) fitoutputfun(x,optimvalues,state,t,y,h); % User defined output function for each iteration of fminsearch options = optimset('OutputFcn',outputFcn,'TolX',TolX,'TolFun',TolFun, 'Display', 'iter'); % Options for fminsearch estimated_lambda = fminsearch(@(x)fitfun_v2(x,t,y),start,options);	5
29 Jun 2010	Circular Statistics Toolbox (Directional Statistics) Compute descriptive and inferential statistics for circular or directional data.	Philipp Berens	I fixed the bug in circ_clust.	Comment only