fow to generate FCI combination

I am working on "Accurate Cancer Classification Using Expressions of Very Few Genes".I have ranked the gened ,rank is from 1 to 100,I have to do FCI COMBINATION ,(i.e),(1,1),(1,2)...........,(2,7),(2,10).........(100,2),(100,98) like this ,for 100 values,how to process,can any one help...

Answer 1

[Fangjun Jiang]

Not sure what exactly combination you want, but in general, you can use for-loops:

N=100;
C=cell(N,N);
for k=1:N
  for j=1:N
    C{k,j}=[k,j];
  end
end
C{1,1}
C{100,100}

[Pat]

thank u sir,HOW TO PERFORM THIS CAN u HELP "use 3 genes from top 100 to generate a combination FCI "i HAVE 4026 VALUES...the values must me (1,1),(1,2)..............(100,1),(100,2)