how to find the same elements from 2 vectors
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Ahmed Alnahdi
am 27 Apr. 2015
Kommentiert: Ahmed Alnahdi
am 27 Apr. 2015
Hi,
I have a question about intersections(same) between two victors. for example if I have vector_1=[1,2,3,4,5], Vector_2=[6,5,7,1,8] I want to be able to find the repeated elements from both vectors , in this case 1 and 5. And is it possible to put a minimum threshold or limit for what number to look for ie. above 2
Thanks in advance .....
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pfb
am 27 Apr. 2015
Bearbeitet: pfb
am 27 Apr. 2015
% this is going to find the common elements (1 and 5)
I=intersect(vector_1,vector_2);
% this is going to introduce the threshold (only 5 survives)
I=I(I>2);
3 Kommentare
pfb
am 27 Apr. 2015
It's all explained in the documentation for intersect
[I,i1,i2] = intersect(vector_1,vector_2);
will give you the indices of the common elements in vector_1 and vector_2. That is, the common elements stored in I correspond to
vector_1(i1)
and
vector_2(i2)
If you want to enforce the threshold, then it is probably convenient to define
t = I>2;
and then
I=I(t);
i1=i1(t);
i2=i2(t);
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