intRo: Learning materials for intRo

#' Geographic coordinates of the Albanian capitals
#'
#' A data frame with latitude, longitude and name of the capital cities of the
#' administrative regions of Albania.
#'
#' @source \url{https://data.humdata.org/dataset/albania-administrative-level-0-3-boundaries}
"alb_capitals"

#' Student/teacher ratio by country
#'
#' A data frame containing the student-to-teacher ratio in the world's countries.
#'
#' @source \url{http://www.diamondse.info/}
"df_ratios"

#' Endangerment level of the world's languages
#'
#' A data frame containing the a list of languages and their endangerment status.
#'
#' @source \url{https://github.com/glottolog/glottolog-cldf}
"endangered"

#' Europe
#'
#' Political boundaries of European countries.
#'
#' @source \url{https://www.naturalearthdata.com}
"europe"

#' Astrological sign and Hogwarts houses
#'
#' This table contains responses from 447 people who reported they assigned
#' Hogwarts house and their birth sign.
#'
#' @source \url{https://imgur.com/gallery/wbuRF}
"harry_potter"

#' Use of land in the world through the years
#'
#' A table with information on the type of land use and the land area over time.
#'
#' @source \url{https://ourworldindata.org/land-use}
"land_use"

#' Use of land in the world through the years (untidy)
#'
#' A table with information on the type of land use and the land area over time.
#'
#' @source \url{https://ourworldindata.org/land-use}
"land_use_untidy"

#' An untidy fruity mess
#'
#' An inventory of sold and bought fruit, but untidy.
#'
#' @source Stefano Coretta
"messy_fruit"

#' Top Personality Dataset
#'
#' (MBTI) Myers-Briggs Personality Type Dataset.
#'
#' @source Arslan Ali, \url{https://www.kaggle.com/arslanali4343/top-personality-dataset}
"personality"

#' Top Personality Dataset
#'
#' (MBTI) Myers-Briggs Personality Type Dataset. The scores are in a single column.
#'
#' @source Arslan Ali, \url{https://www.kaggle.com/arslanali4343/top-personality-dataset}
"person_united"

#' The pyramids of Egypt
#'
#' Information on the pyramids of Egypt.
#'
#' @source Daria Chemkaeva, \url{https://www.kaggle.com/lsind18/egyptianpyramids}
"pyramids"

#' Number of enslaved people during colonisation.
#'
#' This data frame holds information on the number of enslaved people who were
#' brought from Africa to the New World.
#'
#' @source
#'   \url{https://slavevoyages.org/voyage/about#methodology/introduction/0/en/}
"slavery"

#' Number of enslaved people during colonisation.
#'
#' This data frame holds information on the number of enslaved people who were
#' brought from Africa to the New World.
#'
#' @source
#'   \url{https://slavevoyages.org/voyage/about#methodology/introduction/0/en/}
"slavery_dis"

#' Number of enslaved people during colonisation.
#'
#' This data frame holds information on the number of enslaved people who were
#' brought from Africa to the New World.
#'
#' @source
#'   \url{https://slavevoyages.org/voyage/about#methodology/introduction/0/en/}
"slavery_tot"

#' Number of users of social media through the years
#'
#' A data table with number of users for major social media through the years.
#'
#' @source \url{https://ourworldindata.org/rise-of-social-media}
"social"

#' Yoda Speech Corpus
#'
#' Corpus of dialogues from the Star Wars movies with Yoda as an interlocutor.
#'
#' @source Stefano Coretta, \url{https://www.kaggle.com/stefanocoretta/yoda-speech-corpus}
"yoda_corpus"