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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

7,708 个评分
1,251 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....


May 2, 2020

This course provides an introduction of some important concepts and tools on a very important aspect of data science: cleaning and organizing data before any analysis. A must for any data scientist.

Oct 25, 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.


326 - 获取和整理数据 的 350 个评论(共 1,211 个)

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 3, 2019

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

创建者 Hathairat W

Feb 9, 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 David E C G

Sep 16, 2020

Great, the final assignment is challenging and I learn a lot with this

创建者 Juan C I S

Jul 26, 2020

Great choice if you want to learn to manage and download datasets in R

创建者 Filipe M d L

Jun 19, 2020

Besides the problem with some missing links, the content is excellent.

创建者 Siria S

Feb 8, 2018

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

创建者 Jhon A P J

Dec 8, 2016

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

创建者 Rose G

Mar 31, 2020

Everything was new for me in this course, so I loved learning so much

创建者 Ussia N

Jul 9, 2019

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

创建者 jagadeesh p

Feb 20, 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 1, 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 21, 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

创建者 Emily K

Nov 9, 2017

Should be before the 'R Programming' course - eases you in nicely.

创建者 Jesus L S

Oct 24, 2016

a must have course before applying any math model to our data! :-)

创建者 Christophe K

Feb 10, 2020

Very good course and first real challenge in this specialization.