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find_optimal_occupancy_thin <- function(..., verbose = TRUE, sequence = seq(0, 1, 0.1), n = 10, res_type = "raw") {
# get random state from global environment
old_state <- get0(".Random.seed", envir = .GlobalEnv, inherits = FALSE)
on.exit(
{
# restore random state
if (!is.null(old_state)) {
assign(".Random.seed", old_state, envir = .GlobalEnv, inherits = FALSE)
}
},
add = TRUE
)
store_list <- list()
seq_expanded <- rep(sequence, each = n)
seed_set <- rep(sample(1:(.Machine$integer.max), n), times = length(sequence))
if (verbose) {
pb <- progress_bar$new(total = length(seed_set))
}
for (i in 1:length(seq_expanded)) {
if (seq_expanded[i] == 0) {
temp <- hypervolume_n_occupancy(..., thin = FALSE, verbose = FALSE, print_log = TRUE, seed = seed_set[i])
} else {
temp <- hypervolume_n_occupancy(..., thin = TRUE, verbose = FALSE, quant.thin = seq_expanded[i], print_log = TRUE, seed = seed_set[i])
}
store_list[[i]] <- read.table("log_occupancy.txt", header = TRUE)
if (verbose) {
pb$tick()
}
}
if (verbose) {
pb$terminate()
}
res_fun <- sapply(store_list, function(x) sqrt(mean((x[, "input"] - x[, "re_computed"])^2)))
res_fun <- data.frame(seed_set, seq_expanded, res_fun)
colnames(res_fun) <- c("seed", "quant.thin", "rmse")
if (identical(res_type, "raw")) {
res_final <- res_fun[order(res_fun[, "rmse"]), ]
}
if (identical(res_type, "summary")) {
res_final <- aggregate(rmse ~ quant.thin, res_fun, FUN = function(x) c(mn = mean(x), sd = sd(x)))
}
rownames(res_final) <- NULL
res_final
}
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