Tom O'Haver

Version 1.1 posted 25 Apr 2009 adds keypress command "L" which toggles ON and OFF peak labels in the upper panel (zoomed-in segment). Each peak in that segment is labeled with peak position, height, and width. The labels change in real-time as the peak detection parameters are modified.

Version 4: April 2008: Added keypress function "x" to refine the fit by performing 10 trial fits with slightly different first guesses and take the one with the lowest fitting error. You can change the number of trials, "NumTrials", in line 69 (the default is 10)

Wonderful program. Thank you very much for posting it Tom. My question is, how do I extract the data points (x,y) for the newly split peaks ?

Hi can someone help:
(I am a complete Matlab novice), I have my matrix 'signal' arranged in two columns, x ranges non uniformly from 0 to 1 and y starts at zero has a small peak on the start tail of the main peak (around10% size of main), I use peakfit(signal) and it throws up these errors:

??? Error using ==> optimset>checkfield at 310
Invalid value for OPTIONS parameter TypicalX: must be a matrix.

Error in ==> optimset at 248
        checkfield(Names{j,:},arg,optimtbx);

Error in ==> peakfit at 155
options = optimset('TolX',.001,'TypicalX',center,'Display','off' );

and I have no idea why?

thanks for any help!