Plot concentration range respectively density from 2D array

Hello,

I have an array with two columns with measurement data. Now I want to show the concentration range of my measurement. It should be a histogram in form of something like a contour line plot or filled contour plot with a color bar which displays the current colormap (see pictures).

Version: R2012b

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[jonas]

"It should be a histogram in form of something like a contour line plot or filled contour plot with a color bar which displays the current colormap (see pictures)."

This sentence makes little sense to me. What is the nature of your data? What do you want on the colorbar, bin count?

As a sidenote, you should probably update your MATLAB.

[leonidas86]

I want to show how many value pairs fall in a specific area. So the colorbar should display the bin count.

Answer 1

[jonas]

See this thread on density plots using hist3 and contourf

https://se.mathworks.com/matlabcentral/answers/409660-can-i-use-contourf-with-two-matrices