manipulation attribute between two matrices inside loop

Hi, im new in matlab. Please help me to manipulate 2 matrix. For example if i have matrix MM(40X10) and MMM(4X10). I also need to do some calculate on each attribute of the matrix. For example :

MM = %example should have 40 in rows
    13    25    15    11    11    14    12    12    10    14
    14    25    15    11    11    14    12    12    10    14
    14    25    15    11    11    14    12    12    10    14
    13    25    15    12    11    14    12    12    10    15
    13    25    15    12    11    14    12    12    10    15
MMM =
    13    25    14    11    11    13    12    12    12    13
    13    25    14    11    11    13    12    12    12    13
    13    24    14    11    11    14    12    12    12    14
    15    25    15    11    11    14    12    12    10    14

each row in MMM should minus with MM , take the sum and square by 2 , should be :

MM row 1 compute with MMM row1

MM row 1 compute with MMM row2

MM row 1 compute with MMM row3

MM row 1 compute with MMM row4

next loop

MM row 2 compute with MMM row1

MM row 2 compute with MMM row2

MM will execute until 40 times

here is my current code:

 for n=i:40
     for nn=j:4
        result1 = sum((MMM(i,j)- MM(i,:)).^2)
     end
  end 

however, matlab do not turn any error and also any result. Please help me.

[Adam Danz]

What is i and j?

Your loops are set incorrectly. i and j are always the same value. That's not how you use a for-loop.

You're also overwriting the result on each iteration.

Take some time to understand how for-loops are used

https://www.mathworks.com/help/matlab/matlab_prog/loop-control-statements.html

[Khairul Nur]

i is 1 maybe can put 1:40

[Adam Danz]

But that's not the only problem. The loops should look something like this.

 for n=1:40
     for nn=1:4
        result1 = sum((MMM(n, nn)- MM(n,:)).^2)
     end
end 

Answer 1

[KSSV]

If you are new to MATLAB, read about basics of MATLAB. Read about matrix indexing and loops.

MM = rand(40,10) ; 
MMM = rand(4,10) ; 
R = zeros(4,10) ; 
for i = 1:4
  R(i,:) = sum((MMM(i,:)-MM).^2) ; 
end

[Khairul Nur]

thanks, i will