Calculating and plotting FWHM

Hi everyone. I've this code to calculate the FWHM.

x=eVcIpicco;
y=ckxfitIpicco;
maxy=max(y);
f=find(y==maxy);
cp=x(f);
y1=y./maxy;
ydatawr(:,1)=y1;
ydatawr(:,2)=x;
newFit1=find(x>=cp);
newFit2=find(x<cp);
ydatawr2=ydatawr(min(newFit1):max(newFit1),:);
ydatawr3=ydatawr(min(newFit2):max(newFit2),:);
sp1=spline(ydatawr2(:,1),ydatawr2(:,2),0.5);
sp2=spline(ydatawr3(:,1),ydatawr3(:,2),0.5);
sigma_graf=sp1-sp2;

Does someone know how to also plot the FWHM?

I wanna get somthing like this

Thank you

Answer 1

[Fc Fc]

Can someone help me please?

[Walter Roberson]

I do not understand what is different between your question and the other 79 questions that mention FWHM ? I don't get the impression that you examined them .

[Walter Roberson]

Is the question about finding the FWHM or is it about plotting it once found?

[Fc Fc]

Hi walter, the code that I showed should calculate the FWHM...but I'd like also to plot a graph about the FWHM as for example in the picture that I showed...I wanna make a plot