hetGP (version 1.1.7)

f1d2_n: Noisy 1d test function (2) Add Gaussian noise with variance r(x) = scale * (exp(sin(2 pi x)))^2 to f1d2

Description

Noisy 1d test function (2) Add Gaussian noise with variance r(x) = scale * (exp(sin(2 pi x)))^2 to f1d2

Usage

f1d2_n(x, scale = 1)

Arguments

x

scalar or matrix (size n x 1) in [0,1]

scale

scalar in [0, Inf] to control the signal to noise ratio

Examples

X <- matrix(seq(0, 1, length.out = 101), ncol = 1)
Xr <- X[sort(sample(x = 1:101, size = 500, replace = TRUE)),, drop = FALSE]
plot(Xr, f1d2_n(Xr))
lines(X, f1d2(X), col = "red", lwd = 2)