How can I generate a matrix with the same vector in all the lines?
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Hello,
I'd like to generate a matrix with the same vector n times. What I can choose. For example:
A= [ 1 2 3; 1 2 3; 1 2 3; .....n times......; 1 2 3]
Thank You
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Matt Fig
2012 年 11 月 13 日
I think this is what REPMAT probably is doing behind the scenes:
V = 1:3;
M = V(ones(1,4),:)
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Walter Roberson
2012 年 11 月 13 日
t = 1:3;
A = t(ones(n,1), :); %what repmat will do internally so faster than repmat
or
kron(1:3, ones(n,1)); %slower than repmat but kron() has some good uses
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