Dividing a Matrix with a column vector
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Hello everyone.
I am having a problem doing a matrix by vector division. The matrices and vectors are here attached.
The operation would be q_i(10000 X 4)= p_i (10000X4)./P(1X4).
The result should be that each element of the coloumn of p_i have to be divided by the element of P of that column. Thus, giving a result different for each column (equal within the columns since the matrix p_i has this peculiarity). Instead, in my case, the outcome is a matrix 100000X4 whose elements are all equal. I am not able at all in managing this problem. If someone can help me to solve this I would be very grateful.
Thanks!
Lorenzo
采纳的回答
Jan
2021-1-28
The p_i, you have provided, is not [10000 x 4] but [4 x 10000]. When I load the files and run:
q_i = p_i.' ./ P;
I get a [10000 x 4] matrix with different values as expected.
Therefore it is not clear, how you have created your q_i. The problem must be a a location, you did not mention yet.
2 个评论
the cyclist
2021-1-28
@Jan was quicker to reply. I got exactly what he describes.
Lorenzo Pinna
2021-1-28
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