hi every one, i need to ask a question, thank you

1 view (last 30 days)
if i have a row vector like this A=[ 0 1 1 1 0 0 1 1 0 1 ]
and another vector B=[ 1 2 3 4 5 6 ]
and i need to put the element of B in order in A when the element is equal to 1
so if it can possibile i need to return a vector with the dimensions of B like this [ 0 1 2 3 0 0 4 5 0 6 ] , how can i do it if it's possibile to do it in matlab
thank you

Accepted Answer

Image Analyst
Image Analyst on 30 Jun 2019
Try this:
A=[ 0 1 1 1 0 0 1 1 0 1 ]
B=[ 1 2 3 4 5 6 ]
out = A % Initialize
out(logical(A)) = B % Assign B to "1" locations in A
It give you what you asked for.

More Answers (3)

Matt J
Matt J on 30 Jun 2019
Edited: Matt J on 30 Jun 2019
result=sparse(1,find(A),B)

Catalytic
Catalytic on 30 Jun 2019
A=double(A);
A(logical(A))=B;

Matt J
Matt J on 30 Jun 2019
Edited: Matt J on 1 Jul 2019
[i,j]=find(A(:));
result=accumarray([i,j],B(:),size(A.')).'
  4 Comments
mina massoud
mina massoud on 1 Jul 2019
sorry i accept it by mistake , now i accept your answer that is the best answer
thank's very much for all of you, i really appraciate it

Sign in to comment.

Categories

Find more on Matrices and Arrays in Help Center and File Exchange

Products


Release

R2019a

Community Treasure Hunt

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

Start Hunting!