poly7

mdhelper.fit.polynomial.poly7(x: ndarray, p1: float, p2: float, p3: float, p4: float, p5: float, p6: float, p7: float, p8: float) → ndarray

Convenience function for the poly7 model from MATLAB:

$$y=p_1{x}^7+p_2{x}^6+\cdots +p_8$$

Parameters:

xnumpy.ndarray

One-dimensional array containing $x$-values.

p1float

Coefficient $p_1$ for the $x^7$ term.

p2float

Coefficient $p_2$ for the $x^6$ term.

p3float

Coefficient $p_3$ for the $x^5$ term.

p4float

Coefficient $p_4$ for the $x^4$ term.

p5float

Coefficient $p_5$ for the $x^3$ term.

p6float

Coefficient $p_6$ for the $x^2$ term.

p7float

Coefficient $p_7$ for the $x$ term.

p8float

Constant term $p_8$.

Returns:

fitnumpy.ndarray

Fitted $y$-values.