anchor.diff:  double *inform_integration_evidence(int const *series, size_t l,
           size_t n, int const *b, double *evidence, inform_error *err);
   ----
  +[horizontal]
  +Header:: `inform/information_flow.h`
   ****
   
   ****
  
positive.code:         size_t n, int const *b, size_t const *parts, size_t nparts,
          double *evidence, inform_error *err);
  ----
  ****
  
  [[mutual-information]]
  
negative.code: double inform_excess_entropy(int const *series, size_t n, size_t m,
          int b, size_t k, inform_error *err);
  ----
  [horizontal]
  Header:: `inform/excess_entropy.h`
  ****
  
  ****
  