contract_grid {SeBR}

Grid contraction

Description

Contract the grid if the evaluation points exceed some threshold. This removes the corresponding z values. We can add points back to achieve the same (approximate) length.

Usage

contract_grid(z, Fz, lower, upper, add_back = TRUE, monotone = TRUE)

Arguments

z

grid points (ordered)

Fz

function evaluated at those grid points

lower

lower threshold at which to check Fz

upper

upper threshold at which to check Fz

add_back

logical; if true, expand the grid to (about) the original size

monotone

logical; if true, enforce monotonicity on the expanded grid

Value

a list containing the grid points z and the (interpolated) function Fz at those points