Handy functions to quickly load locally stored HMD files -- get the zip from https://www.mortality.org/cgi-bin/hmd/hmd_download.php

fun-fread-local-hmd.R

#===============================================================================
# 2021-02-23 -- local hmd UPD 2025-04-11
# Function to read in a whole local HMD folder
# Ilya Kashnitsky, ilya.kashnitsky@gmail.com
#===============================================================================

# a function to read ONE file
fread_hmd <- function(x) x %>%
    data.table::fread(skip = 2, na.strings = ".") %>%
    mutate(Age = Age %>% str_remove("\\+") %>% as.integer()) %>%
    mutate_all(as.numeric)

# a function to read in the whole directory
fread_hmd_dir <- function(thedir) {
    require(fs)
    require(tidyverse)
    require(janitor)

    suppressWarnings(
        thedir %>%
            dir_ls() %>%
            map_df(fread_hmd, .id = "country") %>%
            janitor::clean_names() %>%
            mutate(
                country = country %>%
                    # remove everything in the string before the last forward slash
                    str_remove("^.*/") |>
                    #  remove everything after the first dot
                    str_remove("\\..*$"),
                age = age %>% str_remove("\\+") %>% as.integer()
            )
    )
}