Finding connection between elements of an array

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.

[Image Analyst]

If 2 is connected to 1 and 3 above it, then why is 7 in the bottom row not connected to 3 and 5 above it? And what's the definition of "row-wise relation"?

[Majbah]

The array is formulated as random. I want to know the connection only, whether in bottom or top row.

By 'row-wise relation' I meant, I will only consider the connection between row elements. For example, 8 is connected with 4 only, not 10 or 3.

[Image Analyst]

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

[Majbah]

Yes, all numbers are integer.

Answer 1

[Image Analyst]

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.