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How can I create a joint (2D) histogram of two equally-sized datasets?

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I have two datasets with about 2.5 million doubles each. I want to create a 2D histogram to see data density. How can I do this? Bonus points if you can tell me how to change the bin widths as well. Thanks!

Accepted Answer

sixwwwwww on 31 Oct 2013
  1 Comment
Patrick on 5 Nov 2013
I found this link on my own before, but it didn't help because I hit a wall, and OP from that video didn't answer my question about it yet. Thanks anyway.

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More Answers (1)

Peter Perkins
Peter Perkins on 6 Nov 2013
Patrick, if you have access to the Statistics Toolbox, you might look at the HIST3 function.
But with that much data, perhaps a traditional histogram is not the way to go. You might look at the smoothhist2d function on the File Exchange.


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