cheb_find_extr: Curve Fitting with Chebyshev Polynomials and Finding of its...

Description Usage Arguments Value

Description

cheb_fit_extr fits a Chebyshev polynomial of order n to a data series using the method of least squares and locates the extrema of the fit using the Newton-Raphson-algorithm.

Usage

1
cheb_find_extr(d, x_axis, n, roots_bound_lower = NA, roots_bound_upper = NA)

Arguments

d

Data series to be fitted

x_axis

Arbitrary x-axis

n

Order of the polynomial

roots_bound_lower

Lower boundary of the extreme value search

roots_bound_upper

Upper boundary of the extreme value search

Value

list of calculated parameters like Chebyshev coefficients, values of the filtered model, values of the first and seconda derivation, postitions and values of extremes


sebaki/ChebyshevMax documentation built on May 29, 2019, 12:07 a.m.