diff options
| -rw-r--r-- | gn3/computations/slink.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gn3/computations/slink.py b/gn3/computations/slink.py index 0c74789..7ee9b5e 100644 --- a/gn3/computations/slink.py +++ b/gn3/computations/slink.py @@ -64,10 +64,13 @@ raise an exception.""" def zero_or_positive(val): return val >= 0; # flatten lists - flattened = [distance for child in lists for distance in child] + flattened = __flatten_list_of_lists(lists) if not all(map(zero_or_positive, flattened)): raise ValueError("Distances should be positive.") +def __flatten_list_of_lists(parent): + return [item for child in parent for item in child] + def nearest(lists, i, j): """ Computes shortest distance between member(s) in `i` and member(s) in `j`. |