Matlab code, which implements the methods to estimate a causal order among groups of variables in linear models introduced in the paper D. Entner, and P.O. Hoyer; Estimating a Causal Order among Groups of Variables in Linear Models (ICANN-2012), is provided to (a) reproduce the results of Section 4 of the above paper and (b) apply the method to own data.
Software Package: [zip - Matlab-code]
Note: The above paper refers to the website "http://www.cs.helsinki.fi/u/entner/GroupCausalOrder/" (which no longer exists). The content on this website is identical.