강의
tidyr로 데이터 재구조화하기
중급기술 수준
업데이트됨 2023. 3.
RData Manipulation4시간15 동영상54 연습 문제4,650 XP24,548성취 증명서
무료 계정 만들기
Google에서 계속 진행더 많은 옵션 보기또는
수천 개 기업의 학습자들이 사랑하는
팀을 교육하시나요?
비즈니스용으로 체험해 보세요강의 설명
선수 조건
Data Manipulation with dplyr1
Tidy Data
You'll be introduced to the concept of tidy data which is central to this course. In the first two lessons, you'll jump straight into the action by separating messy character columns into tidy variables and observations ready for analysis. In the final lesson, you'll learn how to overwrite and remove missing values.
2
From Wide to Long and Back
This chapter is all about pivoting data from a wide to long format and back again using the pivot_longer() and pivot_wider() functions. You'll need these functions when variables are hidden in messy column names or when variables are stored in rows instead of columns. You'll learn about space dogs, nuclear bombs, and planet temperatures along the way.
3
Expanding Data
Values can often be missing in your data, and sometimes entire observations are absent too. In this chapter, you'll learn how to complete your dataset with these missing observations. You'll add observations with zero values to counted data, expand time series to a full sequence of intervals, and more!
4
Rectangling Data
In the final chapter, you'll learn how to turn nested data structures such as JSON and XML files into tidy, rectangular data. This skill will enable you to process data from web APIs. You'll also learn how nested data structures can be used to write elegant modeling pipelines that produce tidy outputs.
tidyr로 데이터 재구조화하기
강의 완료
19백만 명 이상의 학습자와 함께 tidyr로 데이터 재구조화하기을(를) 시작하세요!
무료 계정 만들기
Google에서 계속 진행더 많은 옵션 보기또는
DataCamp for Mobile을 통해 데이터 분석 능력을 향상시키세요.
모바일 강좌와 매일 5분 코딩 챌린지를 통해 이동 중에도 학습 효과를 높이세요.