MATLAB Answers

get the value of element from matrix

16 views (last 30 days)
Let's say: I have matrix A, B
A=[1 1 200; 2 2 2;9 9 9; 5 5 5; 3 3 355];%matrix 5x3
B=[9 9; 1 1; 3 3]%matrix 3x2
How can I call the result matrix somehow the value of two first column in matrix A is the same as in matrix B?
result=[9 9 9; 1 1 200; 3 3 355];

  0 Comments

Sign in to comment.

Accepted Answer

Stephen Cobeldick
Stephen Cobeldick on 17 May 2019
Edited: Stephen Cobeldick on 17 May 2019
Simply use ismember and basic MATLAB indexing:
>> [X,Y] = ismember(B,A(:,1:2),'rows');
>> Z = A(Y(X),:)
Z =
9 9 9
1 1 200
3 3 355

  0 Comments

Sign in to comment.

More Answers (0)

Tags

No tags entered yet.

Community Treasure Hunt

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

Start Hunting!