How can I combine two matrix ?

Fox
2016 1 8
2 个回答
回答已采纳
更新时间：2016 1 9
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0 个投票

Hi I want to combine two matrix(matrix1= e1(743,7), matrix2= e2(743,7)), in the form of taking the first column of the first matrix and then the first from matrix2 then again the first from matrix1 and the second from matrix2 and so on. =>
e=[e1(:,1),e2(:,1),e1(:,1),e2(:,2)...,e1(:,1),e2(:,7),e1(:,2),e2(:,1)...,e1(:,2),e2(:,7),...,e1(:,7),e2(:,1)...e1(:,7),e2(:,7)]
Can somebody helps me how to create such a matrix e which is than a 743:49 matrix?

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jgg
jgg 2016-1-8
Is there a reason you don't want to use a loop to do this?
Fox
Fox 2016-1-8
No my problem is I'm not so sure how to program this. I mean the following isn't correct.
for i=1:7
for s=1:7
e(:,i+s)=[e(:,i),e(:,s)];
end
end
There I get the wrong solutions.

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Roger Stafford
Roger Stafford 2016-1-8

0 个投票

e = reshape([reshape(repmat(e1,7,1),[],49);repmat(e2,1,7)],[],2*49);

更多回答（1 个）

James Tursa
James Tursa 2016-1-8

0 个投票

Another way:
[y x] = ndgrid((1:7)+7,(1:7));
z = [x(:)';y(:)'];
ee = [e1 e2];
e = ee(:,z(:));

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