I need your help for running the Johansen test automatically on (n) historic series, matched in pairs. 

Substantially, I have 30 historic series, and I must test the cointegration between all the possible pairs. Then, existing 435 possible pairs, I need an automatic procedure to make this great number of Johansen tests. 

Overall, I need a procedure that can run all possible cointegration tests on a number of pairs of historic series given by the binomial coefficient (combination), that in the specific case is n=30, k=2, then [30!/(2!*(30-2)!]=435 pairs, and 435 Johansen tests.

Thank you for you help!

Matteo Chiorboli