Difference between the arrays

I have 2 arrays A= [1 2 3 4] and B = [2 3 4 5] representing paths in a graph. I want to find difference between the arrays. A-B =[1 2] and B-A = [4 5]. Can any one help. Thanks in advance.

[Cyrus]

Hi,

Shouldn't A-B = [1] and B-A = [5] ?

to my understanding you want to keep the numbers that are not repeated in the other array, is that right?

[Ananya Malik]

actually A=[1 2 3 4] represents paths in a graph. 1-2, 2-3, 3-4. Similarly for B. By A-B, I want to print the edges in A but not in B.

Answer 1

[KSSV]

clc ; clear all ;
A= [1 2 3 4]; 
B = [2 3 4 5] ;
A1 = [A(1:end-1) ; A(2:end)]' ;
B1 = [B(1:end-1) ; B(2:end)]' ;
AB = setdiff(A1,B1,'rows') 
BA = setdiff(B1,A1,'rows')

[Ananya Malik]

Thanks a lot. works perfectly.