Could anyone tell me how to different combinations with respect to 6 users on the same coding.

If there are 4 users I want to combine users into groups under the conditions:

1. condition 1->users present in one group should not be present in other group.
2. condition 2->users need to form different combinations of groups, since there are 4 users. Say for example, (12,34) can be one combination. The next one can be (13,24), and other one can be (14,23).

code

unused_rows=1:4
while ~isempty(unused_rows)  
N_UE_rows=2;   
rows=unused_rows(randsample(length(unused_rows),N_UE_rows))
[~,idx]=find(ismember(unused_rows,rows))
unused_rows(idx)=[]
end

The above code works, but I can get only one combination of results. Can anyone help me to get the output of all three combinations.

Answer 1

[Image Analyst]

If you have the Statistics and Machine Learning Toolbox, try this:

>> c = combnk(1:6, 4)
c =
     3     4     5     6
     2     4     5     6
     2     3     5     6
     2     3     4     6
     2     3     4     5
     1     4     5     6
     1     3     5     6
     1     3     4     6
     1     3     4     5
     1     2     5     6
     1     2     4     6
     1     2     4     5
     1     2     3     6
     1     2     3     5
     1     2     3     4

[Prabha Kumaresan]

thanks.for the code

c = combnk(1:4,2)
c =

       3     4
       2     4
       2     3
       1     4
       1     3
       1     2
could you tell me how to group the combinations such that number present in one combination should not be present in other combination.