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Probability density function for binary data

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Tesla
Tesla 2021-10-2
评论： Tesla 2021-10-8
I have data for the index of each point: 0 for the point outside particle, 1 for the points inside particle.
How to calculate calculate the PDF for this case? If you know that my domaine points is in [200 67].
And I want to calculate the PDF in a fixed x-point for example 80.

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Image Analyst
Image Analyst 2021-10-2
Not sure what the PDF means in this context. You can compute the chance the particle will be a 0 or a 1. This would give a PDF with only two values on the x axis.
p(1) = sum(data == 0) / numel(data);
p(2) = sum(data == 1) / numel(data);
Is that what you want? Or do you have (x,y) locations for each point and want some sort of 2-D probability that the "1" will land at some location or radius?
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Image Analyst
Image Analyst 2021-10-8
Why isn't it just
% Get probability for various y values along the x=30 line.
pdf30 = meanArray(:, 30);

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