newton_method: The implementation of newton's method for root finding

In issactoast/r4issactoast: Favorite R Functions for <www.issactoast.com>

Description

mom_gamma function will calculate mom estimate for the shape parameter "k" and the scale parameter "theta" by using given sample.

Usage

newton_method(f, df, x_0, stop_criteria = .Machine$double.eps,
  max_iter = 10^3, left_b = -Inf, right_b = Inf)

Arguments

f	the function to be applied
df	the first derivative of f
x_0	the initial point of algorithm
stop_criteria	stopping rule
max_iter	if the iteration is larger than max_iter, loop will be stopped.
left_b	left bound of the solution search
right_b	right bound of the solution search

Value

the root of the function within the given bound

Examples

  x_cu <- function(x){x^3}
  x_sq <- function(x){3*x^2}
  newton_method(x_cu, x_sq, 3)

issactoast/r4issactoast documentation built on May 19, 2019, 8:22 a.m.