Expansion on my Devision of matrix by matrix Q?
조회 수: 1 (최근 30일)
이전 댓글 표시
Can I expand on this,
x = [4; 8; 12; 16; 20];
y = [2 4];
Qa = bsxfun(@rdivide,x,y);
Returns Qa = [2 1; 4 2; 6 3; 8 4; 10 5]
Now if I
Qb = Qa*y;
I don't get four columns but an error. Is there a way to step through each column of 'Qa' and multiply by each entry in 'y'.
Additional Q?
I am slowly building up a function with the above math. I have tried creating an output matrix were the series are in a different order.
Function_Matrix_out = [Qa.series1, x, Qa.series2];
again I return and error. Could you explain where I am going wrong.
Thanks,
AD
댓글 수: 2
Fangjun Jiang
2011년 10월 21일
What do you mean? Why there should be "four columns" when your Qa is 5x2?
What do your mean Qa.series1? You mean the first column? Please use standard term.
채택된 답변
Walter Roberson
2011년 10월 21일
Well, you will have to define the order of the columns you want in the result, but
bsxfun(@times, kron(Qa,[1 1]), kron([1 1],y))
or (different column order)
bsxfun(@times, kron([1 1],Qa), kron(y,[1 1]))
댓글 수: 5
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Multidimensional Arrays에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!