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约翰霍普金斯大学
4.6(6,372 个评分) | 120K 名学生已注册
课程 3(共 10 门,数据科学 专项课程
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您将学习的技能

Data Manipulation, Regular Expression (REGEX), R Programming, Data Cleansing

审阅

4.6(6,372 个评分)
  • 5 stars
    4,317 ratings
  • 4 stars
    1,557 ratings
  • 3 stars
    344 ratings
  • 2 stars
    89 ratings
  • 1 star
    65 ratings
AR

May 14, 2018

Loved the structure of the course. Learned a lot. The course project seemed a little funky , especially creating the codebook for an already existing set of data but was a useful teaching aid.

VV

Nov 26, 2017

A lot of insight and practical knowledge of cleaning data that is available in many places in the Internet. I loved this course and it took me 2 tries to pass the peer graded assignment. ;)

从本节课中
Week 4
Welcome to Week 4 of Getting and Cleaning Data! This week we finish up with lectures on text and date manipulation in R. In this final week we will also focus on peer grading of Course Projects.

教学方

  • Jeff Leek, PhD

    Jeff Leek, PhD

    Associate Professor, Biostatistics
  • Roger D. Peng, PhD

    Roger D. Peng, PhD

    Associate Professor, Biostatistics
  • Brian Caffo, PhD

    Brian Caffo, PhD

    Professor, Biostatistics

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