필터 지우기
필터 지우기

Append vector into zero matrix

조회 수: 6 (최근 30일)
H Lange
H Lange 2021년 11월 17일
댓글: H Lange 2021년 11월 17일
So I have a zero matrix where I wish to insert the same vector into each column of the matrix, but for each column it need to be displaced one row, so that the vectors 'start' in the diagonal of the matrix. For instance if we have the vector v = [v_1, v_2, v_3], the matrix should look as following:
How would you implement this?
So far I have written the following code (the matrix is a NxM matrix):
for i=1:N
for j=1:M
???
end
end
The loop also needs to work for other vectors that has more than 3 elements.

채택된 답변

Chunru
Chunru 2021년 11월 17일
v = zeros(5, 3);
x = randn(3,1);
n = numel(x);
for i=1:size(v, 2)
v(i-1+(1:n), i) = x;
end
v
v = 5×3
1.0525 0 0 1.3620 1.0525 0 0.0952 1.3620 1.0525 0 0.0952 1.3620 0 0 0.0952
  댓글 수: 1
H Lange
H Lange 2021년 11월 17일
That works perfectly, thank you so much!!

댓글을 달려면 로그인하십시오.

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Loops and Conditional Statements에 대해 자세히 알아보기

제품


릴리스

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by