コース
dplyr で行うデータの結合
基礎スキルレベル
更新日 2023/05
RData Manipulation4時間13 ビデオ49 演習4,200 XP81,662修了証明書
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前提条件
Data Manipulation with dplyr1
Joining Tables
Get started with your first joining verb: inner-join! You'll learn to join tables together to answer questions about the LEGO dataset, which contains information across many tables about the sets, parts, themes, and colors of LEGOs over time.
2
Left and Right Joins
Learn two more mutating joins, the left and right join, which are mirror images of each other! You'll learn use cases for each type of join as you explore parts and colors of LEGO themes. Then, you'll explore how to join tables to themselves to understand the hierarchy of LEGO themes in the data.
3
Full, Semi, and Anti Joins
In this chapter, you'll cover three more joining verbs: full-join, semi-join, and anti-join. You'll then use these verbs to answer questions about the similarities and differences between a variety of LEGO sets.
4
Case Study: Joins on Stack Overflow Data
Put together all the types of join you learned in this course to analyze a new dataset: Stack Overflow questions, answers, and tags. This includes calculating and visualizing trends for some notable tags like dplyr and ggplot2. You'll also master one more method for combining tables, the bind_rows verb, which stacks tables on top of each other.
dplyr で行うデータの結合
コース完了 19百万人を超える学習者と共にdplyr で行うデータの結合を始めましょう！
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