% perm_id array of permutations, from set of regions to itself (as generated by "rotate_parcellation") array of size [n(total regions) x nrot] nroi = size(perm_id,1 ...
% in the interval lam_s <= lam <= lam_e. % Herein, R and X are real-valued, and R and x have the same dimension. % The implementation is mainly based on the chapter 'Continuation' in the % textbook ...