MATLAB Answers

Extracting rows in row-wise manner. How to do this?

조회 수: 2(최근 30일)
S Priya
S Priya 2021년 9월 16일
답변: Image Analyst 2021년 9월 16일
Suppose,a matrix A, A=[1 2 3 4; 1 0 2 8; 1 2 3 6....]
Size(A)=100 4
And I want to extract each row in a row-wise manner (ie.row1,then row2, row3....)and then place it in seperate B matrix where 1 row will be used at a time.
How to do this?
  댓글 수: 1
per isakson
per isakson 2021년 9월 16일
Tags in this forum shall not have a leading #.

댓글을 달려면 로그인하십시오.

답변(2개)

KSSV
KSSV 2021년 9월 16일
Question sounds very silly. You can use a lloop.
A = rand(100,4) ;
B = zeros(100,4) ;
for i = 1:100
thisrow = A(i,:) ;
B(i,:) = thisrow ;
end

Image Analyst
Image Analyst 2021년 9월 16일
Try this:
[rows, columns] = size(A);
for row = 1 : rows
% Extract a row of A (all columns of it) into a new row vector, B.
B = A(row, :)
% Now use B in whatever way you want. It will get overwritten on each iteration, but that shouldn't matter.
end

Community Treasure Hunt

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

Start Hunting!

Translated by