Linear combination matrix columns

If I have the following matrix

1 5 6

2 7 6

3 2 2

with c1 c2 and c3 the columns I want obtain the following linear combinations c1 c2, c2 c3, c1 c3, and for each couple calculate the cointegration test (command on matlab : adf).

Answer 1

[Thorsten]

This can be solved similar to your other question http://www.mathworks.com/matlabcentral/answers/244426-linear-combination-matrix-columns

[fede]

In this question I'm asking to calculate the cointegration test and not the covariance

[Thorsten]

Is that what you're looking for? http://de.mathworks.com/help/econ/jcitest.html