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Creating matrix as per given format

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Arundhatee Talukdar
Arundhatee Talukdar 2011-11-10
I want to have a matrix like
a=[ 1 1
1 2
1 3
2 1
2 2
2 3
3 1
3 2
3 3]
the difference is that in my case the range is till 200 in place of 3. How do I do it? Please help me!

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回答（2 个）

Walter Roberson
Walter Roberson 2011-11-10
See kron(), ndgrid(), and repmat() for tools to make such a matrix.
  2 个评论
Arundhatee Talukdar
Arundhatee Talukdar 2011-11-10
I am very new to Matlab, and this answer is not at all helping me.
Walter Roberson
Walter Roberson 2011-11-11
http://www.mathworks.com/help/techdoc/ref/kron.html
http://www.mathworks.com/help/techdoc/ref/ndgrid.html
http://www.mathworks.com/help/techdoc/ref/repmat.html
As you are a beginner, you might perhaps also want these:
http://www.mathworks.com/help/techdoc/ref/horzcat.html
http://www.mathworks.com/help/techdoc/ref/vertcat.html

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Fangjun Jiang
Fangjun Jiang 2011-11-11
N=200;
M=N^2;
a=zeros(M,2);
count=0;
for k=1:N
for j=1:N
count=count+1;
a(count,1:2)=[k j];
end
end

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