rootall: rootall

In ebdt: Evaluation of Binary Diagnostic Test

rootall

Description

Function to locate multiple roots using a grid and uniroot.

It is an auxiliary function used to calculate Gart-Nam Confidence Interval for Likelihood Ratios (LR+ and LR-). It finds all roots of a function within a specified interval using a grid-based approach and the uniroot method.

Usage

rootall(
  f,
  interval,
  lower,
  upper,
  tol = .Machine$double.eps^0.2,
  maxiter = 20,
  n = 1000,
  ...
)

Arguments

f	Function to be evaluated.
interval	Vector with lower and upper limits.
lower	Lower limit.
upper	Upper limit.
tol	Tolerance.
maxiter	Maximum iterations.
n	Number of nodes in the grid.
...	Additional arguments for f.

ebdt documentation built on Aug. 27, 2026, 1:08 a.m.