Create a matrix from a row vector according to specifications

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Nishant
Nishant 2014-5-30
编辑： Andrei Bobrov 2014-5-30
I am working in matlab. I have a row vector in and a scalar number fuzzy_no. I want to create a matrix output of size fuzzy_no times (numel(in)-fuzzy_no). such that the ith col of the matrix output has the elements from i:i+fuzzy_no-1 of row vector in.
In other words I want to implement the following loop without using loops
n = numel(in);
output = zeros(fuzzy_no,n-fuzzy_no);
for i = 1:size(output,2)
output(:,i) = in(1,i:i+fuzzy_no-1);
end

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Andrei Bobrov
Andrei Bobrov 2014-5-30
编辑：Andrei Bobrov 2014-5-30
output = hankel(in(1:n-fuzzy_no),in(n-fuzzy_no:end-1))';
or
output = in(bsxfun(@plus,1:n-fuzzy_no,(0:fuzzy_no-1)'));
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Nishant
Nishant 2014-5-30
Thanks, I needed the last element to be missing so this worked fine (without the transpose),
output = hankel(in(1:n-fuzzy_no),in(n-fuzzy_no:end-1));

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