How to make comparison between paired elements?

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Patty
Patty 2014-6-19
评论： Star Strider 2014-6-19
Hi, I would like to compare pair of adjacent elements of array. For example:
if
A=[1;
2;
1;
3;
2;
4]
In this case the pairs are (1 2) (1 3) (2 4)... So in this case I have "unique" pairs.
But for example:
A=[1;
2;
1;
2;
2;
4]
In this case the pairs are (1 2) (1 2) (2 4) .... In this case I don't have "unique" pairs.
How can I make the comparisson of pairs, considering the pair is form with the adjacent element.
thanks

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Star Strider
Star Strider 2014-6-19
A=[1;
2;
1;
2;
2;
4]
Ar = reshape(A, 2, [])';
UA = unique(Ar,'rows')
The ‘UA’ matrix rows are the unique adjacent elements of your ‘A’ vector.
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Patty
Patty 2014-6-19
I got it using your suggestions... Thanks so much!.. Just a little change.
D=reshape(A,2,[]);
F=sum(D);
anyRepeated = length(unique(F) < length(F));
if anyRepeated<length(F)
passFlag2=0;
else
passFlag2=1;
end
I just copied here, in case somebody else needed.. :)

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