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# ########################################################################
# # Computation of minimax criterion
# ########################################################################
# mMcrit <- function(D,eval_pts){
# return( mMcritPt(D,eval_pts) );
# }
#
# Mmcrit_idx <- function(D){
# dim_num <- ncol(D)
# point_num <- nrow(D)
# ret <- ( 1.0/choose(point_num,2)*sum(1/(stats::dist(D)^(2*dim_num))) ) ^ (-1/(2*dim_num))
# return(ret)
# }
#
# mMcrit_pr <- function(D,k,eval_pts){
# #Projected minimax criterion
# p <- ncol(D)
# N <- nrow(D)
# indices <- t(utils::combn(1:p, k))
# # if (k == 1){
# # eval_pts <- matrix(randtoolbox::sobol(eval_num,k),ncol=1)
# # }else{
# # eval_pts <- randtoolbox::sobol(eval_num,k)
# # }
# # eval_pts <- randtoolbox::sobol(eval_num,p)
#
# return(mMcrit_proj(D,eval_pts,indices))
# }
#
# avgcrit_pr <- function(D,k,eval_pts){
# #Projected minimax criterion
# p <- ncol(D)
# N <- nrow(D)
# indices <- t(utils::combn(1:p, k))
# # if (k == 1){
# # eval_pts <- matrix(randtoolbox::sobol(eval_num,k),ncol=1)
# # }else{
# # eval_pts <- randtoolbox::sobol(eval_num,k)
# # }
# # eval_pts <- randtoolbox::sobol(eval_num,p)
#
# return(avgcrit_proj(D,eval_pts,indices))
# }
#
# Mmcrit_pr <- function(D,k){
# #Projected minimax criterion
# p <- ncol(D)
# N <- nrow(D)
# indices <- t(utils::combn(1:p, k))
# dst <- 1e10 #arbitrarily large
#
# for (i in 1:nrow(indices)){
# dst <- min(dst,Mmcrit_idx( matrix(D[,indices[i,]],ncol=k) ) )
# }
#
# return(dst);
# }
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