How to find overlapping in scatter plot

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Ali Asghar
Ali Asghar 2020-8-13
评论： Image Analyst 2020-8-16
Dear
I created scatter plot and need to find degree of overlapping.
Kindly guide the way.
Thank you
  2 个评论
Walter Roberson
Walter Roberson 2020-8-13
What does degree of overlap mean in this context?
Ali Asghar
Ali Asghar 2020-8-13
As you see the attached image, different symbols show different data classes. I need to find out how classes are closer to each others.

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回答（1 个）

Walter Roberson
Walter Roberson 2020-8-13
Within each of the 20 plots, each symbol has a pair of coordinates, one for x value and the other for y value. Now order the 20 plots in any order (subplot order is fine). For each of the four classes, go through the plots and list off the x coordinate and then the y coordinate. For each of the classes this would be a list of 40 numbers: x1 y1 x2 y2 x3 y3... x20 y20
You would have this list of 40 numbers for each class.
Now you can interpret that list of 40 numbers as coordinates in a 40 dimensional space.
Now that you have a 40 dimensional coordinate for each class, you can calculate the distance between 40D points.
If you only have 4 classes like your sample plot then I would not expect you would get much usable information out of it. If you have many more classes then you could start using clustering techniques.
  2 个评论
Ali Asghar
Ali Asghar 2020-8-13
what is simple way?
i have 4 picture, each picture subplot of 4x5.
Image Analyst
Image Analyst 2020-8-16
Attach your data and show us what you want to obtain.

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