Difference between the arrays

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Ananya Malik
Ananya Malik 2016-8-11
评论： Ananya Malik 2016-8-11
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.
  2 个评论
Cyrus
Cyrus 2016-8-11
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
Ananya Malik 2016-8-11
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.

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KSSV
KSSV 2016-8-11
编辑：KSSV 2016-8-11
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')

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