Finding connection between elements of an array

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Majbah 2014-11-20

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评论： Majbah 2014-11-21

采纳的回答： Image Analyst

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Hi,

I have an array,

A = [1 3 5 7 2 4  9 3; 
     2 2 7 5 3 8 10 2];

I want to know the number of connection between elements considering both rows.

For example, 2 is connected with 1 and 3 if I consider row-wise relation. So, number of connection for 2 is = 2. And, similarly, number of connection for 7 is = 1.

How can I know that number for all elements.

Thanks in advance.

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Image Analyst 2014-11-21

Can we assume they're all integers, or do we have to worry about floating point numbers?

Majbah 2014-11-21

Yes, all numbers are integer.

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Image Analyst 2014-11-21

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编辑：Image Analyst 2014-11-21

If they're integers and you have the Image Processing Toolbox, you can compute the Gray Level Co-occurrence Matrix (GLCM), which is what you're asking for (though you don't know it yet). Use the graycomatrix() function.