How do we calculate the dynamic time warping Matrix in Matlab ?

Dear Matlab Experts I have (A) matrix where the rows indicate instances (40 records) and the columns features , such as A=[20,0,5,8,...etc]; I would like to calculate the Distance matrix for A using dynamic time warping algorithm, when i used this function [Dist,D,k,w]=dtw(t,r) it just calculate the distance between the first two vectors? My question is How can I calculate the dynamic time warping Matrix in Matlab for all my 40 records? Many thanks for your cooperation in advance.

[M]

You posted your question 3 times in one minute...

[Jan]

I have delete the two other posts.

[Mesho AlTham]

I do apologize that was happened by mistake Cause the network was not working very well at that time !!

Answer 1

[Jan]

Perhaps by using 2 loops? What is "t" and "r" in your example?

s2 = size(A, 2);
for col1 = 1:s2
  for col2 = col1+1:s2
     [Dist, D, k, w] = dtw(A(:, col1), A(:, col2));
     % Now collect these values however you want
  end
end

[Mesho AlTham]

Many thanks Jan. That's really help me. I modified it to do the dtw between the records (rows) not the features and it is working for me now. But the issue is how can I know if my result is right !!

s2= 40;

 for row1 = 1:s2
   for row2 = row1+1:s2 
    d(row1,row2)=(A(row1)-A(row2))^2;
    [dist,ix,iy,w] = dtw(A(row1,:), A(row2,:))
   end 
 end