How to plot the labels of contours

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Ivan Mich
Ivan Mich 2022-5-13
编辑： Ivan Mich 2022-5-16
hello,
I would to ask about contours plot in matlab. I am using thefollowing commands in order to plot contours.
t=importdata('input.txt');
x=t(:,1);
y=t(:,2);
z=t(:,5);
[xi, yi] = meshgrid(...
linspace(min(x),max(x)),...
linspace(min(y),max(y)));
zi = griddata(x,y,z, xi,yi,'natural');
figure(1)
contourf(xi,yi,zi,15,'LineStyle','none')
set(gca,'ColorScale','log')
colormap(flipud(hot(50)))
The question is how could I plot the labels of the contours in my plot?
could you please help me?

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CHIRANJIT DAS
CHIRANJIT DAS 2022-5-13
编辑：CHIRANJIT DAS 2022-5-13
Just use contour and label them
figure(1)
contourf(xi,yi,zi,15,'LineStyle','none')
hold on
[C,h] = contour(xi,yi,zi,15);
dx=20;
% change dx to increase fontsize
clabel(C,h,'FontSize',dx,'Color','red')
set(gca,'ColorScale','log')
colormap(flipud(hot(50)))
You can also define your contour labels. Hope it works
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Ivan Mich
Ivan Mich 2022-5-15
编辑：Ivan Mich 2022-5-16
Excuse me, I have a question. I would like to have the same bins and color classification in contourmap and in colorbar. But the point is that I can not make it, despite the search I did.
(for example I would like to have 4 color bins in contour map and in colorbar too)
Could you please help me?

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