diff options
Diffstat (limited to 'numpy/lib/function_base.py')
| -rw-r--r-- | numpy/lib/function_base.py | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py index d2750df05..04063755c 100644 --- a/numpy/lib/function_base.py +++ b/numpy/lib/function_base.py @@ -2006,13 +2006,12 @@ def cov(m, y=None, rowvar=1, bias=0, ddof=None, fweights=None, aweights=None): # Determine the normalization if w is None: fact = float(X.shape[1] - ddof) + elif ddof == 0: + fact = w_sum + elif aweights is None: + fact = w_sum - ddof else: - if ddof == 0: - fact = w_sum - elif aweights is None: - fact = w_sum - ddof - else: - fact = w_sum - ddof*sum(w*aweights)/w_sum + fact = w_sum - ddof*sum(w*aweights)/w_sum if fact <= 0: warnings.warn("Degrees of freedom <= 0 for slice", RuntimeWarning) |