MATLAB: Substituing values of a matrix

matrixsubstituing

Hi everyone! I'm working on substituing values of a matrix with the values of another matrix. So for example, if I had

    A = [1 2 3 ; 2 4 5 ; 4 1 3];
    V = [1 10 ; 2 20 ; 3 30 ; 4 40 ; 5 50];

I'd like to substitue the values of A that are equal to the values of the first column of V, with the value of the second column of V. For the example, change in A 1 by 10, 2 by 20 and so on. Thank you!

Best Answer

out = reshape(V(A,2),size(A));

Related Solutions

MATLAB: How to display the Index of a matrix to other corresponding matrices

A = [8,3,5;2,4,6;9,3,4]
A = 3×3
     8     3     5
     2     4     6
     9     3     4
B = [4,11,5;9,3,2;4,8,1]
B = 3×3
     4    11     5
     9     3     2
     4     8     1
C = [11,40,3;10,7,5;11,3,60]
C = 3×3
    11    40     3
    10     7     5
    11     3    60
[v,x] = min(A(:));
B(x)
ans = 9
C(x)
ans = 10

Or without reshaping A:

[v,x] = min(A,[],'all','linear');

MATLAB: How do you pick a random number from a vector, just once

v = [1 2 3] ;
iwant = v(randperm(length(v),1))

Best Answer

Related Solutions

MATLAB: How to display the Index of a matrix to other corresponding matrices

MATLAB: How do you pick a random number from a vector, just once

Related Question