Polynomial

class paintbox.Polynomial(wave, degree, pname=None, zeroth=True)

Bases: paintbox.sed.PaintboxBase

Polynomial SED component.

This class produces Legendre polynomials that can be either added or multiplied with other SED components.

Attributes

wave: ndarray, Quantity

Wavelength array of the polynomials

degree: int

Order of the Legendre polynomial.

poly: 2D ndarray

Static Legendre polynomials array used in the calculations.

pname: str (optional)

Name of the polynomial to be used in parnames.

zeroth: bool (optional)

Controls used of zeroth order polynomial. Default is True (zero order is used).

Attributes Summary

parnames

List with names of the parameters of the model.

Methods Summary

__call__(theta)	Calculation of the polynomial with weights theta.
constrain_duplicates()	Constrain the parameters with the same name to have the same value during calling.
fix(fixed_vals)	Fix a set of parameters in parnames using a dictionary.
gradient(theta)	Gradient of the polynomial with weights theta.
plot(theta[, ax, plottype])	Plot the model for a given set of parameters.

Attributes Documentation

parnames

List with names of the parameters of the model.

Methods Documentation

__call__(theta)

Calculation of the polynomial with weights theta.

constrain_duplicates()

Constrain the parameters with the same name to have the same value during calling.

fix(fixed_vals)

Fix a set of parameters in parnames using a dictionary.

gradient(theta)

Gradient of the polynomial with weights theta.

plot(theta, ax=None, plottype=None, **kwargs)

Plot the model for a given set of parameters.