could anyone help me how to display all the numbers inaddition to the numbers present.

I a having a system with maximum number of users to be 6.

A =[1 2;

1 3;

2 5;

2 4;

3 5;

4 6

4 5]

In each row i can get only two numbers out of 6.

But i want to display all the numbers in each row of the matrix in the following manner

[1 2 3 4 5 6;

1 3 2 4 5 6;

2 5 1 3 4 6;

2 4 1 3 5 6;

3 5 1 2 4 6;

4 6 1 2 3 5;

4 5 1 2 3 4]

So I want to reshape the matrix A inorder to get the above matrix

Could anyone please help me on this.

Answer 1

[Stephen23]

>> A = [1,2;1,3;2,5;2,4;3,5;4,6;4,5]
A =
     1     2
     1     3
     2     5
     2     4
     3     5
     4     6
     4     5
>> F = @(v)[v,setdiff(1:6,v)];
>> M = cell2mat(cellfun(F,num2cell(A,2),'uni',0))
M =
     1     2     3     4     5     6
     1     3     2     4     5     6
     2     5     1     3     4     6
     2     4     1     3     5     6
     3     5     1     2     4     6
     4     6     1     2     3     5
     4     5     1     2     3     6

Answer 2

[darova]

I'd divide you task in several steps:

1. Use for loop to consider each row separately
2. Use ismember() to identificate which numbers (1:6) are members of a current row
3. Add to the current row number that are not members

[jaah navi]

i tried with the following code:

for i=1:size(A,1)

indices=find(A,i)

ismember(A,i)

end

Could you please help me on this.

[Adam]

I'd probably use

doc setdiff

rather than ismember. This will give you the missing 4 numbers for each row.

[jaah navi]

i also tried with the following code but unable to get the result.

A= [1     3;
     2     3;
     2     4;
     1     5;
     2     5;
     1     6;
     3     6;
     4     6;
     5     6];
b=size(A,1);
B = A;
c=A(end,:);
for i = 1:b   
B(i,c(randperm(2))) = setdiff(1:b,B(i,1:2))
end

could you please help me on this.

[Adam]

Why are you using randperm? setdiff should return 4 values for each row, which should be assigned (in the order they are returned, so far as I can see from what you want) as columns 3 to 6 or that row of the result matrix.

[jaah navi]

could you please help me to get the following result

[1     2     3    4    5    6;
 1     3     2    4    5    6;
 2     5     1    3    4    6;
 2     4     1    3    5    6;
 3     5     1    2    4    6;
 4     6     1    2    3    5;
 4     5     1    2    3    4]