How to create null vector Matlab
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Dear members
I have matrix with size M*N and vector with size 1*K
I want to create a null vector with length of N - length of K
I tried this :
V=zeros(1,length(N)-length(K));
but it doesn't work. Any solution please ?
Thank you.
3 个评论
Just Manuel
2021-2-18
this would be easier if you told us what is not working. Do you get an error message? Or just an unexpected result?
As it stands, your code is valid.
Afluo Raoual
2021-2-18
Just Manuel
2021-2-18
Yep, then go with Bjorn Gustavsson's answer.
Cheers
Manuel
采纳的回答
Bjorn Gustavsson
2021-2-18
First off if you've done something like:
N = 12;
M = 14;
K = 7;
Mtr = randn(M,N);
V = rand(1,K);
V=zeros(1,length(N)-length(K));
Then you only check the length of the 1-by-1 arrays N and K - and the difference of that is zero. If your N and K are your arrays you might have run into a situation where N < K, because this also happens when N < K. Perhaps you've mixed up the dimensions of your matrix and you meant to make something like this:
V=zeros(1,M - K);
HTH
4 个评论
Afluo Raoual
2021-2-18
Just Manuel
2021-2-18
Yes, then omit the length call. Just do
zeros(1, N-K);
Cheers
Manuel
Afluo Raoual
2021-2-18
Just Manuel
2021-2-18
You're welcome.
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