Nothing
straussDesign <- function(n,dimension,RND,alpha=0.5,repulsion=0.001,NMC=1000,constraints1D=0,repulsion1D=0.0001,seed=NULL){
# if no seed is provided in argument, choice of the seed for 'runif'
if (is.null(seed)){
seed <- as.numeric(Sys.time())
}
set.seed(seed)
# Case with potential different to zero
# the C code is computed for beta = -ln(gamma)
if (alpha != 0){
repulsion <- -log(repulsion)
} # End of the case with no constraint
# Case with no constraints
if(constraints1D!=0){
R1D <- 0.75/n
}
# initial design
init <- runif(n*dimension)
out <- .C("C_StraussDesign", as.double(init), as.integer(n),
as.integer(dimension), as.integer(constraints1D), as.integer(NMC),
as.double(RND), as.double(alpha), as.double(repulsion),
as.double(repulsion1D),as.integer(seed),ans = double(n * dimension),
PACKAGE="DiceDesign")
if (alpha != 0){
repulsion <- exp(-repulsion)
}
# Outputs
if (constraints1D==0){
return(list(n=n, dimension=dimension,
design_init=t(matrix(init,ncol=n,nrow=dimension,byrow=FALSE)),
radius=RND, alpha=alpha, repulsion=repulsion, NMC=NMC,
seed=seed, constraints1D=constraints1D,
design=matrix(out$ans,nrow=n,ncol=dimension,byrow=TRUE)))
} else {
return(list(n=n,dimension=dimension,
design_init=matrix(init,ncol=dimension,nrow=n,byrow=TRUE),
radius=RND, alpha=alpha, repulsion=repulsion,NMC=NMC,
seed=seed, constraints1D=constraints1D, repulsion1D=repulsion1D,
design=matrix(out$ans,nrow=n, ncol=dimension,byrow=TRUE)))
}
}
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