How to plot density of binary data
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I'm trying to plot either a 3D histogram, or a 2D plot with density (i.e. frequency) represented by color.
I used the hist3 command to create a density/frequency matrix (size 64x75). This matrix is created using the command: "cnt=hist3(X, [64 75])" and is calculated from raw data. My problem now is that I've created 70 matrices, representing the individual data from 70 research participants. I've averaged the density matrices across all participants, so I now have a 64x75 "average density matrix" that I need to plot. I've tried using the surf command, but I don't want a surface plot. I need bars to represent the information.
Is there a way to create either a 3D histogram, or a 2D plot with density represented by color, using the "average density matrix" that I have created? I've attached the average density matrix I'm trying to graph.
Thank you.
Answers (2)
Image Analyst
on 28 Feb 2014
Why not just display as a color image? Does it absolutely have to be a 2.5D perspective rendering of rising square bars (like a bird's eye view of downtown)?
4 Comments
Youssef Khmou
on 1 Mar 2014
Ryan, as you need an alternative to two dimensional graphic like @image analyst proposed, you can use bar3 command, here is an example :
bar(magic(15))
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