MATLAB: About Find difference set.

difference set

Hi, I have two matrices(same number of columns), M1 and M2. M2 is a set of subset of rows in M1. Is there a function in matlab that I can directly get M1-M2={set of rows in M1 but not set of rows in M2}

Thanks.

Best Answer

doc setxor

Use the 'rows' flag.

Related Solutions

MATLAB: Solve system of large linear symbolic equations

On my system, Maple ran out of memory trying to solve() that equation. There is a possibility that a system with more memory might be able to arrive at an answer, given enough time.

Solving the entire system of 12 equations when they are each this large, would take a lot of time and memory.

I would recommend following John's advice to simplify the system.

MATLAB: Difference

If I remember correctly, diff works across the first non-singleton dimension. So diff(A) works across columns and diff(A(1, :)) works across rows.

x = [1,2,3; 4,5,6];
diff(x, [], 1)
ans =
   3     3     3
diff(x, [], 2)
ans =
   1     1
   1     1

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MATLAB: Solve system of large linear symbolic equations

MATLAB: Difference

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