diff options
Diffstat (limited to 'numpy/polynomial/polynomial.py')
| -rw-r--r-- | numpy/polynomial/polynomial.py | 45 |
1 files changed, 35 insertions, 10 deletions
diff --git a/numpy/polynomial/polynomial.py b/numpy/polynomial/polynomial.py index f767a3067..97f4fd148 100644 --- a/numpy/polynomial/polynomial.py +++ b/numpy/polynomial/polynomial.py @@ -824,7 +824,7 @@ def polyval2d(x, y, c): Notes ----- - .. versionadded::1.7.0 + .. versionadded:: 1.7.0 """ try: @@ -884,7 +884,7 @@ def polygrid2d(x, y, c): Notes ----- - .. versionadded::1.7.0 + .. versionadded:: 1.7.0 """ c = polyval(x, c) @@ -937,7 +937,7 @@ def polyval3d(x, y, z, c): Notes ----- - .. versionadded::1.7.0 + .. versionadded:: 1.7.0 """ try: @@ -1001,7 +1001,7 @@ def polygrid3d(x, y, z, c): Notes ----- - .. versionadded::1.7.0 + .. versionadded:: 1.7.0 """ c = polyval(x, c) @@ -1174,7 +1174,7 @@ def polyvander3d(x, y, z, deg) : Notes ----- - .. versionadded::1.7.0 + .. versionadded:: 1.7.0 """ ideg = [int(d) for d in deg] @@ -1250,12 +1250,16 @@ def polyfit(x, y, deg, rcond=None, full=False, w=None): the coefficients in column `k` of `coef` represent the polynomial fit to the data in `y`'s `k`-th column. - [residuals, rank, singular_values, rcond] : present when `full` == True - Sum of the squared residuals (SSR) of the least-squares fit; the - effective rank of the scaled Vandermonde matrix; its singular - values; and the specified value of `rcond`. For more information, - see `linalg.lstsq`. + [residuals, rank, singular_values, rcond] : list + These values are only returned if `full` = True + + resid -- sum of squared residuals of the least squares fit + rank -- the numerical rank of the scaled Vandermonde matrix + sv -- singular values of the scaled Vandermonde matrix + rcond -- value of `rcond`. + For more details, see `linalg.lstsq`. + Raises ------ RankWarning @@ -1492,6 +1496,27 @@ def polyroots(c): # class Polynomial(ABCPolyBase): + """A power series class. + + The Polynomial class provides the standard Python numerical methods + '+', '-', '*', '//', '%', 'divmod', '**', and '()' as well as the + attributes and methods listed in the `ABCPolyBase` documentation. + + Parameters + ---------- + coef : array_like + Polynomial coefficients in order of increasing degree, i.e., + ``(1, 2, 3)`` give ``1 + 2*x + 3*x**2``. + domain : (2,) array_like, optional + Domain to use. The interval ``[domain[0], domain[1]]`` is mapped + to the interval ``[window[0], window[1]]`` by shifting and scaling. + The default value is [-1, 1]. + window : (2,) array_like, optional + Window, see `domain` for its use. The default value is [-1, 1]. + + .. versionadded:: 1.6.0 + + """ # Virtual Functions _add = staticmethod(polyadd) _sub = staticmethod(polysub) |