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location of element in matrix

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jano satti
jano satti on 25 Apr 2017
Edited: Andrei Bobrov on 25 Apr 2017
I have a matrix mat and I want to find location of x in mat matrix.location should be in order of x.
mat =[
1.0000 1.0000 1.0000 1.0000 1.0000 1.0000
0.0099 1.0000 1.0000 0.0120 1.0000 0.0115
0.0093 1.0000 1.0000 0.0120 1.0000 0.0070
1.0000 1.0000 1.0000 1.0000 1.0000 1.0000
0.0098 1.0000 1.0000 0.0089 1.0000 0.0093
1.0000 1.0000 1.0000 1.0000 1.0000 1.0000];
x =[
0.0089
0.0099
0.0070];
A =mat
C=x
numbersInA = unique(C)
numbersInC = unique(C)
for k = 1 : length(numbersInA)
[rowA colA] = find(A==numbersInC(k))
w(k,:)= [rowA , colA]
end
ans is [ 3 6]
[5 4]
[2 1]
but I need this solution::
[5 4]
[2 1]
[3 6]
Thanks in advance.

Accepted Answer

Andrei Bobrov
Andrei Bobrov on 25 Apr 2017
Edited: Andrei Bobrov on 25 Apr 2017
[l0,ii] = ismembertol(mat(:),x);
[i0,j0] = ind2sub(size(mat),find(l0));
[~,i1] = sort(ii(l0));
out = [i0,j0];
out = out(i1,:);

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Stephen Cobeldick
Stephen Cobeldick on 25 Apr 2017

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Azzi Abdelmalek
Azzi Abdelmalek on 25 Apr 2017
Use ismember function

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