How can I construct all fairs of points?

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Han
Han il 2 Giu 2020
Risposto: David Hill il 2 Giu 2020
For example, there are points and fairs of the points.
points = [(1:10); 100*rand(2,10)]';
fairs = [(1:17); floor(1:0.5:9); ceil(2:0.5:10)]';
But, the fairs are not all fairs of points. It shows only 17 random fairs.
How can I construct the fairs of the all points?
For example I want to construct the following fairs for three points.
1,2
1,3
2,3
2,1
3,1
3,2
  2 Commenti
madhan ravi
madhan ravi il 2 Giu 2020
Is that the expected output?
Han
Han il 2 Giu 2020
the expected output is
1,1,2
2,1,3
3,2,3
4,2,1
5,3,1
6,3,2
The first colume is index.
I want to find the all fair cases.

Accedi per commentare.

Risposta accettata

David Hill
David Hill il 2 Giu 2020
a=nchoosek([1 2 3],2);
b=[a; fliplr(a)];

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