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position of values in a matrix

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sampath kumar punna
sampath kumar punna am 29 Okt. 2019
i have a set of matrix
23 24
35 2
12 19
24 23
12 15
26 17
i want to know the position of in the matrix of [35 2], [12 15]
which is 2 and 5
is it possible to get the position of it.

Antworten (2)

Alex Mcaulley
Alex Mcaulley am 29 Okt. 2019
A = [23 24
35 2
12 19
24 23
12 15
26 17]
loc = find(ismember(A,[35 2],'rows'))
loc =
2
  1 Kommentar
Alex Mcaulley
Alex Mcaulley am 29 Okt. 2019
Another option:
[~,loc,~] = intersect(A,[35 2],'rows')
loc =
2

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ME
ME am 29 Okt. 2019
If I understand what you are asking then you could use:
Z=[23 24; 35 2; 12 19; 24 23; 12 15; 26 17];
M=[35 2; 12 15];
pos = find(ismember(Z, M, 'rows') == 1);
where Z is your original matrix, M is a matrix of the items you want to search for and pos is the output containing the locations of those items.
  2 Kommentare
Walter Roberson
Walter Roberson am 29 Okt. 2019
good sportiveness
sampath kumar punna
sampath kumar punna am 30 Okt. 2019
this code is not working when the elements in the row are repeated

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