diff options
Diffstat (limited to 'beliefs/utils/math_helper.py')
| -rw-r--r-- | beliefs/utils/math_helper.py | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/beliefs/utils/math_helper.py b/beliefs/utils/math_helper.py index a25ea68..12325e1 100644 --- a/beliefs/utils/math_helper.py +++ b/beliefs/utils/math_helper.py @@ -1,10 +1,16 @@ -"""Random math utils.""" +"""Math utils""" def is_kronecker_delta(vector): - """Returns True if vector is a kronecker delta vector, False otherwise. - Specific evidence ('YES' or 'NO') is a kronecker delta vector, whereas - virtual evidence ('MAYBE') is not. + """ + Check if vector is a kronecker delta. + + Args: + vector: iterable of numbers + Returns: + bool, True if vector is a kronecker delta vector, False otherwise. + In belief propagation, specific evidence (variable is directly observed) + is a kronecker delta vector, but virtual evidence is not. """ count = 0 for x in vector: |