How to find unique matrix or matrix combination from given permutations?

26 Aug 2021
1 Answer
Updated 27 Aug 2021
9 Views (30 days)

0 votes

I have a matrix .
>> perms([19.95,20,20.05,20.95,21,21.05])
ans =
21.05 21 20.95 20.05 20 19.95
21.05 21 20.95 20.05 19.95 20
21.05 21 20.95 20 20.05 19.95
21.05 21 20.95 20 19.95 20.05
21.05 21 20.95 19.95 20.05 20
21.05 21 20.95 19.95 20 20.05
21.05 21 20.05 20.95 20 19.95
21.05 21 20.05 20.95 19.95 20
21.05 21 20.05 20 20.95 19.95
21.05 21 20.05 20 19.95 20.95
21.05 21 20.05 19.95 20.95 20
21.05 21 20.05 19.95 20 20.95
21.05 21 20 20.95 20.05 19.95
21.05 21 20 20.95 19.95 20.05
21.05 21 20 20.05 20.95 19.95
21.05 21 20 20.05 19.95 20.95
21.05 21 20 19.95 20.95 20.05
21.05 21 20 19.95 20.05 20.95
21.05 21 19.95 20.95 20.05 20
21.05 21 19.95 20.95 20 20.05
21.05 21 19.95 20.05 20.95 20
21.05 21 19.95 20.05 20 20.95
21.05 21 19.95 20 20.95 20.05
21.05 21 19.95 20 20.05 20.95
21.05 20.95 21 20.05 20 19.95
21.05 20.95 21 20.05 19.95 20
21.05 20.95 21 20 20.05 19.95
21.05 20.95 21 20 19.95 20.05
21.05 20.95 21 19.95 20.05 20
21.05 20.95 21 19.95 20 20.05
21.05 20.95 20.05 21 20 19.95
21.05 20.95 20.05 21 19.95 20
21.05 19.95 20.05 20 21 20.95
21.05 19.95 20.05 20 20.95 21
21.05 19.95 20 21 20.95 20.05
21.05 19.95 20 21 20.05 20.95
21.05 19.95 20 20.95 21 20.05
21.05 19.95 20 20.95 20.05 21
21.05 19.95 20 20.05 21 20.95
21.05 19.95 20 20.05 20.95 21
21 21.05 20.95 20.05 20 19.95
21 21.05 20.95 20.05 19.95 20
21 21.05 20.95 20 20.05 19.95
21 21.05 20.95 20 19.95 20.05
21 21.05 20.95 19.95 20.05 20
21 21.05 20.95 19.95 20 20.05
21 21.05 20.05 20.95 20 19.95
21 21.05 20.05 20.95 19.95 20
21 21.05 20.05 20 20.95 19.95
21 21.05 20.05 20 19.95 20.95
21 21.05 20.05 19.95 20.95 20
21 21.05 20.05 19.95 20 20.95
21 21.05 20 20.95 20.05 19.95
21 21.05 20 20.95 19.95 20.05
21 21.05 20 20.05 20.95 19.95
21 21.05 20 20.05 19.95 20.95
21 21.05 20 19.95 20.95 20.05
21 21.05 20 19.95 20.05 20.95
21 21.05 19.95 20.95 20.05 20
21 21.05 19.95 20.95 20 20.05
21 21.05 19.95 20.05 20.95 20
21 21.05 19.95 20.05 20 20.95
21 21.05 19.95 20 20.95 20.05
21 21.05 19.95 20 20.05 20.95
21 20.95 21.05 20.05 20 19.95
21 20.95 21.05 20.05 19.95 20
21 20.95 21.05 20 20.05 19.95
21 20.95 21.05 20 19.95 20.05
21 20.95 21.05 19.95 20.05 20
21 20.95 21.05 19.95 20 20.05
21 20.95 20.05 21.05 20 19.95
21 20.95 20.05 21.05 19.95 20
21 20.95 20.05 20 21.05 19.95
21 20.95 20.05 20 19.95 21.05
21 20.95 20.05 19.95 21.05 20
21 20.95 20.05 19.95 20 21.05
21 20.95 20 21.05 20.05 19.95
21 20.95 20 21.05 19.95 20.05
21 20.95 20 20.05 21.05 19.95
21 20.95 20 20.05 19.95 21.05
21 20.95 20 19.95 21.05 20.05
21 20.95 20 19.95 20.05 21.05
21 20.95 19.95 21.05 20.05 20
21 20.95 19.95 21.05 20 20.05
21 20.95 19.95 20.05 21.05 20
21 20.95 19.95 20.05 20 21.05
21 20.95 19.95 20 21.05 20.05
21 20.95 19.95 20 20.05 21.05
21 20.05 21.05 20.95 20 19.95
21 20.05 21.05 20.95 19.95 20
21 20.05 21.05 20 20.95 19.95
21 20.05 21.05 20 19.95 20.95
21 20.05 21.05 19.95 20.95 20
21 20.05 21.05 19.95 20 20.95
21 20.05 20.95 21.05 20 19.95
21 20.05 20.95 21.05 19.95 20
21 20.05 20.95 20 21.05 19.95
21 20.05 20.95 20 19.95 21.05
21 20.05 20.95 19.95 21.05 20
21 20.05 20.95 19.95 20 21.05
21 20.05 20 21.05 20.95 19.95
21 20.05 20 21.05 19.95 20.95
21 20.05 20 20.95 21.05 19.95
21 20.05 20 20.95 19.95 21.05
21 20.05 20 19.95 21.05 20.95
21 20.05 20 19.95 20.95 21.05
21 20.05 19.95 21.05 20.95 20
21 20.05 19.95 21.05 20 20.95
21 20.05 19.95 20.95 21.05 20
21 20.05 19.95 20.95 20 21.05
21 20.05 19.95 20 21.05 20.95
21 20.05 19.95 20 20.95 21.05
21 20 21.05 20.95 20.05 19.95
21 20 21.05 20.95 19.95 20.05
21 20 21.05 20.05 20.95 19.95
21 20 21.05 20.05 19.95 20.95
21 20 21.05 19.95 20.95 20.05
21 20 21.05 19.95 20.05 20.95
21 20 20.95 21.05 20.05 19.95
21 20 20.95 21.05 19.95 20.05
21 20 20.95 20.05 21.05 19.95
21 20 20.95 20.05 19.95 21.05
21 20 20.95 19.95 21.05 20.05
21 20 20.95 19.95 20.05 21.05
21 20 20.05 21.05 20.95 19.95
21 20 20.05 21.05 19.95 20.95
21 20 20.05 20.95 21.05 19.95
21 20 20.05 20.95 19.95 21.05
21 20 20.05 19.95 21.05 20.95
21 20 20.05 19.95 20.95 21.05
21 20 19.95 21.05 20.95 20.05
21 20 19.95 21.05 20.05 20.95
21 20 19.95 20.95 21.05 20.05
21 20 19.95 20.95 20.05 21.05
21 20 19.95 20.05 21.05 20.95
21 20 19.95 20.05 20.95 21.05
21 19.95 21.05 20.95 20.05 20
21 19.95 21.05 20.95 20 20.05
21 19.95 21.05 20.05 20.95 20
21 19.95 21.05 20.05 20 20.95
21 19.95 21.05 20 20.95 20.05
21 19.95 21.05 20 20.05 20.95
21 19.95 20.95 21.05 20.05 20
21 19.95 20.95 21.05 20 20.05
21 19.95 20.95 20.05 21.05 20
21 19.95 20.95 20.05 20 21.05
21 19.95 20.95 20 21.05 20.05
21 19.95 20.95 20 20.05 21.05
21 19.95 20.05 21.05 20.95 20
21 19.95 20.05 21.05 20 20.95
21 19.95 20.05 20.95 21.05 20
21 19.95 20.05 20.95 20 21.05
21 19.95 20.05 20 21.05 20.95
21 19.95 20.05 20 20.95 21.05
21 19.95 20 21.05 20.95 20.05
21 19.95 20 21.05 20.05 20.95
21 19.95 20 20.95 21.05 20.05
21 19.95 20 20.95 20.05 21.05
21 19.95 20 20.05 21.05 20.95
21 19.95 20 20.05 20.95 21.05
20.95 21.05 21 20.05 20 19.95
20.95 21.05 21 20.05 19.95 20
20.95 21.05 21 20 20.05 19.95
20.95 21.05 21 20 19.95 20.05
20.95 21.05 21 19.95 20.05 20
20.95 21.05 21 19.95 20 20.05
20.95 21.05 20.05 21 20 19.95
20.95 21.05 20.05 21 19.95 20
20.95 21.05 20.05 20 21 19.95
20.95 21.05 20.05 20 19.95 21
20.95 21.05 20.05 19.95 21 20
20.95 21.05 20.05 19.95 20 21
20.95 21.05 20 21 20.05 19.95
20.95 21.05 20 21 19.95 20.05
20.95 21.05 20 20.05 21 19.95
20.95 21.05 20 20.05 19.95 21
20.95 21.05 20 19.95 21 20.05
20.95 21.05 20 19.95 20.05 21
20.95 21.05 19.95 21 20.05 20
20.95 21.05 19.95 21 20 20.05
20.95 21.05 19.95 20.05 21 20
20.95 21.05 19.95 20.05 20 21
20.95 21.05 19.95 20 21 20.05
20.95 21.05 19.95 20 20.05 21
20.95 21 21.05 20.05 20 19.95
20.95 21 21.05 20.05 19.95 20
20.95 21 21.05 20 20.05 19.95
20.95 21 21.05 20 19.95 20.05
20.95 21 21.05 19.95 20.05 20
20.95 21 21.05 19.95 20 20.05
20.95 21 20.05 21.05 20 19.95
20.95 21 20.05 21.05 19.95 20
20.95 21 20.05 20 21.05 19.95
20.95 21 20.05 20 19.95 21.05
20.95 21 20.05 19.95 21.05 20
20.95 21 20.05 19.95 20 21.05
20.95 21 20 21.05 20.05 19.95
20.95 21 20 21.05 19.95 20.05
20.95 21 20 20.05 21.05 19.95
20.95 21 20 20.05 19.95 21.05
20.95 21 20 19.95 21.05 20.05
20.95 21 20 19.95 20.05 21.05
20.95 21 19.95 21.05 20.05 20
20.95 21 19.95 21.05 20 20.05
20.95 21 19.95 20.05 21.05 20
20.95 21 19.95 20.05 20 21.05
20.95 21 19.95 20 21.05 20.05
20.95 21 19.95 20 20.05 21.05
20.95 20.05 21.05 21 20 19.95
20.95 20.05 21.05 21 19.95 20
20.95 20.05 21.05 20 21 19.95
20.95 20.05 21.05 20 19.95 21
20.95 20.05 21.05 19.95 21 20
20.95 20.05 21.05 19.95 20 21
19.95
20.05 21.05 20.95 21 19.95 20
20.05 21.05 20.95 20 21 19.95
20.05 21.05 20.95 20 19.95 21
20.05 21.05 20.95 19.95 21 20
20.05 21.05 20.95 19.95 20 21
20.05 21.05 20 21 20.95 19.95
20.05 21.05 20 21 19.95 20.95
20.05 21.05 20 20.95 21 19.95
20.05 21.05 20 20.95 19.95 21
20.05 21.05 20 19.95 21 20.95
20.05 21.05 20 19.95 20.95 21
20.05 21.05 19.95 21 20.95 20
20.05 21.05 19.95 21 20 20.95
20.05 21.05 19.95 20.95 21 20
20.05 21.05 19.95 20.95 20 21
20.05 21.05 19.95 20 21 20.95
20.05 21.05 19.95 20 20.95 21
20.05 21 21.05 20.95 20 19.95
20.05 21 21.05 20.95 19.95 20
20.05 21 21.05 20 20.95 19.95
20.05 21 21.05 20 19.95 20.95
20.05 21 21.05 19.95 20.95 20
20.05 21 21.05 19.95 20 20.95
20.05 21 20.95 21.05 20 19.95
20.05 21 20.95 21.05 19.95 20
20.05 21 20.95 20 21.05 19.95
20.05 21 20.95 20 19.95 21.05
20.05 21 20.95 19.95 21.05 20
20.05 21 20.95 19.95 20 21.05
20.05 21 20 21.05 20.95 19.95
20.05 20 20.95 21.05 19.95 21
20.05 20 20.95 21 21.05 19.95
20.05 20 20.95 21 19.95 21.05
20.05 20 20.95 19.95 21.05 21
20.05 20 20.95 19.95 21 21.05
20.05 20 19.95 21.05 21 20.95
20.05 20 19.95 21.05 20.95 21
20.05 20 19.95 21 21.05 20.95
20.05 20 19.95 21 20.95 21.05
20.05 20 19.95 20.95 21.05 21
20.05 20 19.95 20.95 21 21.05
20.05 19.95 21.05 21 20.95 20
20.05 19.95 21.05 21 20 20.95
20.05 19.95 21.05 20.95 21 20
20.05 19.95 21.05 20.95 20 21
20.05 19.95 21.05 20 21 20.95
20.05 19.95 21.05 20 20.95 21
20.05 19.95 21 21.05 20.95 20
20.05 19.95 21 21.05 20 20.95
20.05 19.95 21 20.95 21.05 20
20.05 19.95 21 20.95 20 21.05
20.05 19.95 21 20 21.05 20.95
20.05 19.95 21 20 20.95 21.05
20.05 19.95 20.95 21.05 21 20
20.05 19.95 20.95 21.05 20 21
20.05 19.95 20.95 21 21.05 20
20.05 19.95 20.95 21 20 21.05
20.05 19.95 20.95 20 21.05 21
20.05 19.95 20.95 20 21 21.05
20.05 19.95 20 21.05 21 20.95
20.05 19.95 20 21.05 20.95 21
20.05 19.95 20 21 21.05 20.95
20.05 19.95 20 21 20.95 21.05
20.05 19.95 20 20.95 21.05 21
20.05 19.95 20 20.95 21 21.05
20 21.05 21 20.95 20.05 19.95
20 21.05 21 20.95 19.95 20.05
20 21.05 21 20.05 20.95 19.95
20 21.05 21 20.05 19.95 20.95
19.95
20 20.95 21 21.05 19.95 20.05
20.95
19.95 20 21.05 20.05 20.95 21
19.95 20 21 21.05 20.95 20.05
19.95 20 21 21.05 20.05 20.95
19.95 20 21 20.95 21.05 20.05
19.95 20 21 20.95 20.05 21.05
19.95 20 21 20.05 21.05 20.95
19.95 20 21 20.05 20.95 21.05
19.95 20 20.95 21.05 21 20.05
19.95 20 20.95 21.05 20.05 21
19.95 20 20.95 21 21.05 20.05
19.95 20 20.95 21 20.05 21.05
19.95 20 20.95 20.05 21.05 21
19.95 20 20.95 20.05 21 21.05
19.95 20 20.05 21.05 21 20.95
19.95 20 20.05 21.05 20.95 21
19.95 20 20.05 21 21.05 20.95
19.95 20 20.05 21 20.95 21.05
19.95 20 20.05 20.95 21.05 21
19.95 20 20.05 20.95 21 21.05
>>
I want to find out all possible m*n combinations of this matrix. In my case especially i required 1*2 combinations, such as [21.05, 21], [21, 20.95], [20.95, 20.05] and so on as array format. Please help me.

4 Comments
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Walter Roberson
Walter Roberson on 26 Aug 2021
For n that is to be fixed for any one run, or for all valid n?
Please clarify what two-dimensional combinations would look like? Is [A A; A A] a valid two-dimensional combination? Is [A B; A C] with the repeated A? Is an m * n combination just a reshape() of an (m times n) combination vector to be m by n ?
Triveni
Triveni on 26 Aug 2021
m and n indicates unique size of matrix from matrix ans which shall not be repeated same values in identical places. For m=2 , n=2 I(:,:,1)=[19.95, 20;. 19.95, 20] I(:,:,2) =[20, 19.95; 19.95,20] and all possible combinations for m*n but not repeated the same matrix(m*n), means if [19.95, 20;. 19.95, 20] is located in different place in matrix ans shall be ignored.
Walter Roberson
Walter Roberson on 26 Aug 2021
That is not combinations, that is permutations, which is an important difference. Please confirm whether you need permutations or combinations? For permutations, [A B C] is different than [C A B], but for combinations they are the same.
Triveni
Triveni on 27 Aug 2021
Yes, permutations. But in matrix form. I need to find all possible permutations.

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Asked:

Triveni
Triveni
on 26 Aug 2021

Commented:

Triveni
Triveni
on 27 Aug 2021

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