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tidyverse で学ぶカテゴリ型データ
基礎スキルレベル
更新日 2026/01RData Manipulation4時間13 ビデオ44 演習3,600 XP16,445達成証明書
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前提条件
Reshaping Data with tidyr1
Introduction to Factor Variables
In this chapter, you’ll learn all about factors. You’ll discover the difference between categorical and ordinal variables, how R represents them, and how to inspect them to find the number and names of the levels. Finally, you’ll find how forcats, a tidyverse package, can improve your plots by letting you quickly reorder variables by their frequency.
2
Manipulating Factor Variables
You’ll continue to dive into the forcats package, learning how to change the order and names of levels and even collapse them into one another.
3
Creating Factor Variables
Having gotten a good grasp of forcats, you’ll expand out to the rest of the tidyverse, learning and reviewing functions from dplyr, tidyr, and stringr. You’ll refine graphs with ggplot2 by changing axes to percentage scales, editing the layout of the text, and more.
4
Case Study on Flight Etiquette
In this final chapter, you’ll take all that you’ve learned and apply it in a case study. You’ll learn more about working with strings and summarizing data, then replicate a publication quality 538 plot.
tidyverse で学ぶカテゴリ型データ
コース完了 19百万人を超える学習者と一緒にtidyverse で学ぶカテゴリ型データを今日から始めましょう!
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