Finding matched rows of matrix with other matrix?

Lets say we have two matrix.
A=[1 1]
B=[2 0;1 1;1 1;3 1]
Now second and third rows of B are same as matrix A. and I want to find indices of such rows. i.e 2 and 3
I have tried 'ismember' but it is giving just first matched row index i.e. 2 (code can be seen below)
Thanks
A=[1 1]
B=[2 0;1 1;1 1;3 1]
[L, M] = ismember(A,B, 'rows')

 Akzeptierte Antwort

Gaganjyoti Baishya
Gaganjyoti Baishya am 24 Jun. 2020

0 Stimmen

arr=[];
for i=1:size(B,1)
c=0;
for j=1:2
if B(i,j)==A(1,j)
c=c+1;
end
end
if c==2
arr=[arr i]
end
end
arr gives your required indices

1 Kommentar

Thanks ,Gaganjyoti Baishya.
But i have also developed the code below:
A=[1 2];
B=[1 1;1 2;3 2;2 1;1 2;1 2];
Index=1;
for i=1:size(B,1)
Ismatched=ismember(A,B(i,:),'rows');
if Ismatched==1
MatchedRows(Index)=i;
Index=Index+1;
end
end
MatchedRows

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (0)

Produkte

Version

R2017a

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by