find the element in matrix of intersecting vectors

1 view (last 30 days)
Here's my code. I have а & b matrices, and A & B vectors that maximize a's rows and b's colums. also there is another matrix that is a combination of these two matrices ( c ).
I want to have such a result that the intersection of A and B vectors will give the corresponding element from c
For example if
A(1)=a(2,1) & A(2)=a(2,2)
B(1)=b(1,2) & B(2)=b(2,2)
THUS the result is c(2,2)
a=[1,2;3,4]
b=[5,6;7,8]
for i=1:2
A(i)=max(a(:,i))
B(i)=max(b(i,:))
end
  2 Comments
Ani Asoyan
Ani Asoyan on 23 Jan 2020
ok here's the thing.
I have two matrices.
a=[1, 2; 3, 4]
b=[5, 6; 7, 8]
and I maximize 'a' matrix's rows
A(1)=max(a(:,1))
A(2)=max(a(:,2))
and maximize 'b' matrix's colums
B(1)=max(b(1,:))
B(2)=max(b(2,:))
now I have 2 vectors` A and B
Also I combine a and b matrices and get another matrix named c (sorry I didn't include it in the code back then)
endnum2strcell = @(m) arrayfun(@num2str, m, 'UniformOutput', false);
c=strcat(num2strcell(a), num2strcell(b))
Here's the question
I want to get the element of intersection of 'A' and 'B' vectors, and I want it to find in c matrix.
For example. If
A(1)=a(1,1)
A(2)=a(1,2) ('A' vector will be 'a' matrix's 1st column)
B(1)=b(1,2)
B(2)=b(2,2) ('B' vector will be 'b' matrix's 2nd row)
then the result will be c(1,2)

Sign in to comment.

Accepted Answer

Matt J
Matt J on 23 Jan 2020
Edited: Matt J on 23 Jan 2020
attainedA=( max(a,[],1)==a );
attainedB=( max(b,[],2)==b );
result = c(attainedA & attainedB)

More Answers (0)

Categories

Find more on Shifting and Sorting Matrices in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!