EasySpin forum

Hello,

I am trying to figure out how to use custom simulation functions for coupled parameters. Therefore, I am executing an example from Easyspin Acadamy 2020 (code provided below). However, when starting the fitting procedure in the GUI the fitting does not beginand the following log message appears.

"Running optimization algorithm with 1 active parameters...
Simulation function error:
Not enough input arguments."

Does anyone know which part of the code this refers to or how to fix this?

Thanks in advance!

I am running the code on Matlab R2024a with Easyspin 6.0.6

clear, clf, clc

Sys.g=2;
Sys.Nucs = '1H, 1H, 1H';
Sys.n = [2 3 2];
Sys.A = [20; 30; 50];
Sys.lwpp =  [0 0.1];

Exp.mwFreq = 9.5;
Exp.Range = [330 350];


[B,spc_exp] = garlic(Sys,Exp);
spc_exp = addnoise(spc_exp,100,'f');
plot(B,spc_exp);

Sys.myA = 20;
Vary.myA = 5;

esfit(spc_exp,@mysimfun,{Sys, Exp}, {Vary});

function spc= mysimfun(Sys,Exp,Opt)
    Sys.A = Sys.myA*[1, 1.5, 2.5];
    spc = garlic(Sys,Exp,Opt);
end

You try to use diffrenent parameter's set for custom simulation function and esfit(). I mean Opt parameter.

Thank you!