convert a 10x2 matrix into x,y coordinates

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I have a 10X2 matrix. Now i want to convert this into x,y co-ordinate. like (x,y)=[(1,1), (1,2)]. How to do that?
  3 Comments
KALYAN ACHARJYA
KALYAN ACHARJYA on 7 Aug 2019
@Madhan as per my undestanding, may be this one
mat_cor{i,j}=[i,j]; % The loop creates it
A structure with [1,1], [1,2]..... same size as matrix size. I have no clue, WHY?
Supriya Gain
Supriya Gain on 7 Aug 2019
Suppse i have a 3X2 matrix [1 2;3 4;5 6]
Now i want the answer as (x1,y1)=(1,2)
(x2,y2)=(3,4)
(x3,y3)=(5,6)

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Accepted Answer

Stephen23
Stephen23 on 7 Aug 2019
>> M = [1,2;3,4;5,6]
M =
1 2
3 4
5 6
>> V = 1:size(M,1);
>> fprintf('(x%d,y%d)=(%d,%d)\n',[V;V;M.'])
(x1,y1)=(1,2)
(x2,y2)=(3,4)
(x3,y3)=(5,6)
  2 Comments
Sirvan Ahmadi
Sirvan Ahmadi on 14 Dec 2022
What if we only want to have,
(1,2)
(3,4)
(5,6)
Stephen23
Stephen23 on 14 Dec 2022
"What if we only want to have"
M = [1,2;3,4;5,6]
M = 3×2
1 2 3 4 5 6
fprintf('(%d,%d)\n',M.')
(1,2) (3,4) (5,6)

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More Answers (1)

Steven Lord
Steven Lord on 7 Aug 2019
If you are trying to create twenty individual variables, one for each element of your 10-by-2 matrix, DON'T DO THAT. See this Answers post for a lengthy discussion of why this is strongly discouraged.
In my opinion, turning that one variable into two (to make it easier to refer to the X and Y coordinates separately) seems reasonable.
A = [1 2;3 4;5 6];
x = A(:, 1);
y = A(:, 2);
With this approach, what you called x2 would instead be x(2). Or you could use the whole vector at once.
plot(x, y) % Shorter than but equivalent to
plot(A(:, 1), A(:, 2))
But the proliferation of variables from one to twenty-one (the twenty new ones plus the original one) is just going to clutter your workspace. Consider: if you had a 10000-by-2 matrix instead of a 10-by-2, do you want to search through twenty thousand variables in your workspace to access the piece of data you need?

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