http://www.mathworks.com/matlabcentral/newsreader/view_thread/252491 Feed for thread: gaussian fit : center and scale x data normalization en-us &copy;1994-2010 by The MathWorks, Inc. webmaster@mathworks.com MATLAB Central Newsreader http://blogs.law.harvard.edu/tech/rss 60 http://www.mathworks.com/images/membrane_icon.gif Fri, 29 May 2009 14:20:17 -0400 http://www.mathworks.com/matlabcentral/newsreader/view_thread/252491#653388 Cedric Hello,<br> I wonder how it is possible to use the 'center and scale x data' function during a gaussian fit with the cftoolbox.<br> Without checking the 'center and scale x data' box, I obtain 'correct' a1, b1, c1 coef results, with a fit roughly matching the data set. I write 'correct' to express the fact that these coefs are in the right order of magnitude, but the fitting curve could obviously be closer to the data.<br> To improve things, I checkthe 'center and scale x data' box : then the curve matches far better the data. But how can one go back to the mean and std values? How to deal with the values given by Matlab ?<br> <br> Thanks for your help,<br> Cedric<br> &nbsp;