bratley1988_Fun {sensobol}

Bratley and Fox (1988) function

Description

It implements the Bratley and Fox (1988) function.

Usage

bratley1988_Fun(X)

Arguments

X

A data frame or numeric matrix where each column is a model input and each row a sample point.

Details

The function requires k model inputs and reads as follows:

y=\prod_{i=1}^{k} |4x_i - 2 |\,,

where x_i\sim\mathcal{U}(0,1).

Value

A numeric vector with the model output.

Examples

# Define settings (test with k = 10)
N <- 100; params <- paste("X", 1:10, sep = "")

# Create sample matrix
mat <- sobol_matrices(N = N, params = params)

# Compute Bratley and Fox (1988) function
Y <- bratley1988_Fun(mat)