How can put the numbers in line eqution?

Hi

This is my code. I want put ('X') data in line equation ('p'). After run ('polyfit') code, just I could see the two numbers that refer to coefficients. now I want to put the series of numbers in the line regression equation ('p').

please help me.

Thanks.

VF = imread('Vf.tif');
Tnormal= imread('Tnormmsh.tif');
[i,j]=size(VF);
length=i*j;
X=VF(1:length);
Y=Tnormal(1:length);
Minx=min(X);
Maxx=max(X);
Miny=min(Y);
Maxy=max(Y);
x0=Minx:0.01:Maxx;
Tmax=zeros(size(x0));
for i = 1:1:numel(x0)
    x1 = x0(i);
    X1=x1;
    X2=x1+0.01;
    idx= find(X>=X1 & X<X2);
    x3=X(idx);
    y3=Y(idx);
    Tmax(i)=max(y3) ;
end
p=polyfit(x0,Tmax,1);

Answer 1

[Sulaymon Eshkabilov]

There are a few points can be fixed and improved in your code, e.g.:

...
X=double(VF(1:length));          % Conversion to double() needed
Y=double(Tnormal(1:length));     % Conversion to double() needed  
...
p=polyfit(x0,Tmax,1);
Pval=polyval(p, X);              % The values of Fit model computed 

[MOzhdeh Salimi]

Thank you so much.

[Sulaymon Eshkabilov]

Most welcome!