Adding contour lines to heatmap

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Ishani Mukherjee 2020-10-12

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评论： KSSV 2020-10-13

Using a 100X100 matrix, I have genertated this heatmap (attached fig). The deepest shade of red indicates a frequency of 25. And deep blue indicates a frequency of 0.

How will I add a line (a circle) to show encircle the area covers 90% of my data?

I want to compare multiple such figures..so such contour lines will be very useful for me.

Thanks in advance!!

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KSSV 2020-10-12

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Read about contourf.

Or use contour with hold on. You need to specify the level and your desired color.

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Ishani Mukherjee 2020-10-12

Thanks..

KSSV 2020-10-13

Then what is 100*100 matrix in the question? How can you generate such plot without a matrix?

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MATLAB Graphics 2-D and 3-D Plots Data Distribution Plots

MATLAB Graphics Formatting and Annotation Colormaps

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