calculate distance between XY pair

Hi

I want to calculate distance between XY points but as pair not all of them.

I used 'pdist' and 'pdist2' function but they calculate distance for all points.

I want to calculate point 1(xy) with point 2(xy) then point 2(xy) with point 3(xy) and go on (it is a part of recorded movments).

I think I will need to write a loop but I am not sure about proper function.

[infinity]

Hello,

Let me make sure that I understant you well.

You have data like A = [ 1 3; 2 4; 3 6] where the first column of A is x and the second column of A is y. You want to compute distance between (1, 3) and (2,4) then (2,4) and (3,6). Is it correct?

[Boby S]

Hello

That is right.

[infinity]

Hello,

So, I think the anwser below is what you want.

Answer 1

[Walter Roberson]

sqrt(diff(x).^2 + diff(y).^2)

Answer 2

[Pawan Sharma]

You can use the method suggested by Walter in a forloop to get the required ansewer

 A = [ 1 3; 2 4; 3 6] 
 distanceList = zeros(1,size(A,1)-1); % calculated distance will be stored here
 for  i  = 1:size(A,1)-1
     data1 = A(i,:);
     data2 = A(i+1,:)
     distance = sqrt(((data1(1)-data2(1))^2)+(data1(2)-data2(2))^2);
     distanceList(i) = distance;
 end