diff options
Diffstat (limited to 'numpy/lib/polynomial.py')
| -rw-r--r-- | numpy/lib/polynomial.py | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/numpy/lib/polynomial.py b/numpy/lib/polynomial.py index c40e50a57..1cbb3cd88 100644 --- a/numpy/lib/polynomial.py +++ b/numpy/lib/polynomial.py @@ -510,13 +510,19 @@ def polyfit(x, y, deg, rcond=None, full=False, w=None, cov=False): coefficients for `k`-th data set are in ``p[:,k]``. residuals, rank, singular_values, rcond - Present only if `full` = True. Residuals is sum of squared residuals - of the least-squares fit, the effective rank of the scaled Vandermonde - coefficient matrix, its singular values, and the specified value of - `rcond`. For more details, see `linalg.lstsq`. + These values are only returned if ``full == True`` + + - residuals -- sum of squared residuals of the least squares fit + - rank -- the effective rank of the scaled Vandermonde + coefficient matrix + - singular_values -- singular values of the scaled Vandermonde + coefficient matrix + - rcond -- value of `rcond`. + + For more details, see `numpy.linalg.lstsq`. V : ndarray, shape (M,M) or (M,M,K) - Present only if `full` = False and `cov`=True. The covariance + Present only if ``full == False`` and ``cov == True``. The covariance matrix of the polynomial coefficient estimates. The diagonal of this matrix are the variance estimates for each coefficient. If y is a 2-D array, then the covariance matrix for the `k`-th data set @@ -527,7 +533,7 @@ def polyfit(x, y, deg, rcond=None, full=False, w=None, cov=False): ----- RankWarning The rank of the coefficient matrix in the least-squares fit is - deficient. The warning is only raised if `full` = False. + deficient. The warning is only raised if ``full == False``. The warnings can be turned off by |