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finding the position of values in a matrix

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sampath kumar punna
sampath kumar punna am 30 Okt. 2019
i have set
X=[
12 14
1 2
12 4
6 14
12 18
12 4
1 2]
Y=[
1 2
1 2
6 14
12 4]
can i get the position of Y elements in X matrix as the number are repeated its hard for me to find using code normal code. can any one please help me.

Antworten (1)

galaxy
galaxy am 30 Okt. 2019
Try
[~,idx]=setdiff(X,Y,'rows');
idx_rows=setdiff(1:size(X,1),idx);
idx_rows =
2 3 4 6 7
  3 Kommentare
galaxy
galaxy am 30 Okt. 2019
because X and Y array has same value, if you want to find only one, you need use unique function
sampath kumar punna
sampath kumar punna am 30 Okt. 2019
yes X and Y have same values but Y is not having all values of X only few values are in Y, so for those some values in Y, what is the position in X.

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