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学生对 约翰霍普金斯大学 提供的 获取和整理数据 的评价和反馈

6,722 个评分
1,043 条评论


Before you can work with data you have to get some. This course will cover the basic ways that data can be obtained. The course will cover obtaining data from the web, from APIs, from databases and from colleagues in various formats. It will also cover the basics of data cleaning and how to make data “tidy”. Tidy data dramatically speed downstream data analysis tasks. The course will also cover the components of a complete data set including raw data, processing instructions, codebooks, and processed data. The course will cover the basics needed for collecting, cleaning, and sharing data....



Feb 02, 2016

Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.\n\nSee the videos for general presentation, but use the energy on the excersizes.


Oct 26, 2016

This course is really a challenging and compulsory for any one who wants to be a data scientist or working in any sort of data. It teaches you how to make very palatable data-set fro ma messy data.


251 - 获取和整理数据 的 275 个评论(共 1,004 个)

创建者 Mahmoud E

Oct 01, 2018

This course gives a great insight on how capable and versatile R language.

创建者 Jamie M

Jul 06, 2018

Excellent once again. I'm running out of superlatives. Great job Coursera.


Sep 11, 2017

Very good for anyone wanting to get into the field of Data Science using R

创建者 Harshdeep K

Aug 29, 2016

Learning how to create a tidy Data set was one of the perks in this course

创建者 Jean P L

Jan 26, 2016

It's awesome. Very difficult, challenging, and lots of stuff to be learnt

创建者 陈颐欢

Apr 23, 2018

Very useful class for someone like me who be a beginner of data science

创建者 Keith L

Jun 02, 2017

I learned a lot from this course and can see its practical applications.

创建者 Diana S

Feb 11, 2016

Thank you son much!!!!

I really like the course.

It help me in my job =)

创建者 Bushra W

May 03, 2019

Coursera gives me the flexibility I need to take courses on my own time

创建者 Hathairat W

Feb 09, 2019

A very Important course for working with R and data science in general.

创建者 Omkar P

Jun 10, 2016

Great module with hands on practicals !!!!! help to build confidence...

创建者 王婷婷

Mar 21, 2016

good, i need more pratice by myself and i haven't read the book yet :-)

创建者 Siria S A

Feb 08, 2018

Nice, course. I learn a lot of skills I need for my job and university

创建者 Jhon A P J

Dec 08, 2016

Excellent course, I would like to see more content about cleaning data

创建者 Ussia N

Jul 09, 2019

Equiping me with the skills for my data science career...excellent !!

创建者 jagadeesh p

Feb 21, 2019

The course material is helpful enough to deploy skills in my research

创建者 20e

Nov 16, 2017

learning a lot! And my post in the forum got helpful reply very soon!

创建者 Ajay S

Oct 17, 2017

Great course to get started on a career track to be a data scientist.

创建者 Atman B

Apr 01, 2019

This course is one important step towards becoming a Data Scientist.

创建者 Ji H W

Jul 31, 2018

Great lecture and help understanding concepts throughout the lecture

创建者 Juan C L T

Oct 13, 2017

great course, very useful and insightful; challenging final project.

创建者 Dhrubajyoti M

May 16, 2017

Course material is good, assignment is better, mentors are the best!

创建者 Осипов К Ю

Jan 22, 2020

Perfect practical course! I got a lot of good practices and skills!

创建者 Bojan B

Oct 14, 2018

Great course with great materials. Easy to understand and to learn.

创建者 antonio q

Dec 19, 2017

very clear, many examples and good exercise, assignments

thank you