This program looks great and I was very excited with using it but it doesn't seem to like my data. I have for instance X=[.2;.4;.6;.7;.8;.9;1] and Y=[95;90;90;70;65;55;50]. When I press 'plot inital' it looks ok, but when I press 'find it' I get the message 'Exiting: Maximum number of function evaluations has been exceeded - increase MaxFunEvals option. Current function value: -Inf' with K=-Inf and s_sq_e=NaN.
Would be great if you could explain who to get this right. Thanks!
I suspect the problem Rita and Michael were having is that their data describes a decreasing logistic and the program is set up to do an increasing logistic. I just uploaded a non-GUI fit_logistic function and at first it failed with Rita's data, too. Fortunately, it is an easy fix by making the time series negative.
hi Varuna De Silva,
This is the errors I received while following your instructions on the readme.txt
??? Attempt to reference field of non-structure array.
Error in ==> Logistic>plotBut_Callback at 159
Error in ==> gui_mainfcn at 96
Error in ==> Logistic at 30
??? Error while evaluating uicontrol Callback