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The data has the only goal of providing an example of use of vorobT() and vorobDev(). It has been obtained by fitting two Gaussian processes on 20 observations of a bi-objective problem, before generating conditional simulation of both GPs at different locations and extracting non-dominated values of coupled simulations.

Usage

CPFs

Format

A data frame with 2967 observations on the following 3 variables.

f1

first objective values.

f2

second objective values.

set

indices of corresponding conditional Pareto fronts.

Source

M Binois, D Ginsbourger, O Roustant (2015). “Quantifying uncertainty on Pareto fronts with Gaussian process conditional simulations.” European Journal of Operational Research, 243(2), 386--394. doi:10.1016/j.ejor.2014.07.032 .

Examples

data(CPFs)

res <- vorobT(CPFs, reference = c(2, 200))
eafplot(CPFs[,1:2], sets = CPFs[,3], percentiles = c(0, 20, 40, 60, 80, 100),
       col = gray(seq(0.8, 0.1, length.out = 6)^2), type = "area",
       legend.pos = "bottomleft", extra.points = res$VE, extra.col = "cyan")