In lsqcurvefitting program showing ,QUITE DEBUGGING, how to relve this issue

function[modZ,Mr]=impedance_test52(var,field)

M=var(1);Ha=var(2);sig2=var(3);alpha=var(4);D=var(5);teta=var(6);si=var(7);

%Define constants

g=((2.2).*(10e5));

w=((10).*(10e6));

M0=((4).*(pi).*(10e-7));

sig1=(0.57)*(10e8);

c=3*(10e10);

d=(0.1)*(10e-3);

l=3;

% Define function.

R=((4.*l)./pi).*(1./((sig1.*d^2)+(sig2).*(D^2-d^2)));

wm=g.*4.*(pi).*M;

w1=g.*((Ha.*(cosd(teta-si)).^2)+((field).*(sind(teta))));

w2=g.*((Ha.*(cosd(2.*(teta-si))))+((field).*(sind(teta))));

%Relative permeability

Mr=(wm.*(wm+w1-(1i.*(alpha).*w)))./(((wm+w1-(1i.*(alpha).*w)).*(w2-(1i.*(alpha).*w)))-(w.^2));

Mr=abs(Mr);

Mef=Mr.*M0;

T2=c./(sqrt(2.*(pi).*(sig2).*w));

Z=((((1-1i).*l).*(((sqrt(Mef+1)).*((sind(teta)).^2))+(cosd(teta)).^2)./((pi).*(sig2).*D.*T2)))./R;

modZ=(((abs(Z)./(2.34401312390370e-09))-1).*100);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

end

clc;

clear;

close all;

load('mat52.txt');

field= mat52(:,1);

Z= mat52(:,2);

plot(field,Z,'bo');

hold on;

lb=[90*(10e3),1,5*10e9,0.001,0.1*10e-6,50,0.1];

ub=[100*(10e3),10,900*10e9,1,151*10e-6,98,10];

MI=lsqcurvefit(@impedance_test52,[900,3,20*10e9,5,16*10e-6,59,1],field,Z,lb,ub);

[fitdata,Mr]=impedance_test52(MI,field);

plot(field, fitdata,'-r','LineWidth',2);

xlabel('Field');

ylabel('MI');

legend('mat52','fitting')

title('MI vs Field')

0 528.77027

0.8 551.70746

1.6 576.78561

2.4 597.14538

3.2 601.62784

4 605.07225

4.8 599.59894

5.6 590.33324

6.4 575.99528

7.2 560.74904

8 545.81539

8.8 528.67591

9.6 511.5895

10.4 494.85108

11.2 477.58773

12 460.04718

12.8 443.32055

13.6 426.06901

14.4 410.96432

15.2 395.31112

16 379.55765

20 311.6072

24 257.21026

28 212.94603

32 177.72339

36 149.07697

40 125.61486

when i run this program, is not fitting and showing QUITE DEBUGGING ,How can we solve this , can u pls help me in this issue.

[Renato SL]

Please refer to this

tl;dr : at the very least tidy the format (especially the parts of the scripts or command window outputs), post the complete error message, post the expected output (elaborate on 'not fitting').

[Shubh Sahu]

Can you share "mat52.txt" and which version of MATLAB you are using?

[sumalatha vasam]

Hi,

Thanks you very much for your reply, am using MATLAB R2018 version and Please find the enclosed 'mat52.txt' file.

[sumalatha vasam]

Now it's working fine, no issue.Thank you very much for your attention.