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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

6,752 个评分
1,049 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....



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.


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.


376 - 获取和整理数据 的 400 个评论(共 1,010 个)

创建者 Prathamesh N

Jun 16, 2017

Course Project was absolutely brilliant!

创建者 Roland P

Nov 12, 2017

Great course for hands-on data munching

创建者 Alejandro C C

Sep 20, 2016

Great way to learn how to optimize data

创建者 Mauricio P

Sep 26, 2017

Good material and excellent exercises.

创建者 Sourav B

Jul 12, 2017

Very important part taught intuitively

创建者 Venkatesh

Jun 30, 2017

Very well designed for beginners in R.

创建者 Hua S

Jun 13, 2017

I've learned so much from this course!

创建者 Karel Š

Feb 03, 2017

Nice and hard course, which is good :)

创建者 Emanuele M

Feb 09, 2016

Course is really well done and useful.

创建者 Mohamed A E M

Jul 28, 2017

Rally well course i sugeste it much .


Nov 01, 2016

One of the best courses of the track!

创建者 Сергей Ш

Jul 05, 2016

It was kind of exhausting, but great.

创建者 Juan P S

Jan 12, 2016

Best instructors, best learning . . .

创建者 Silas S

Nov 14, 2018

Fantastic course. Highly recommended

创建者 Merin R

Jul 20, 2017

Well written, and doesnt waste time.

创建者 Jordi A C

Dec 25, 2016

Very interesting. I've learnt a lot.

创建者 6RiL

Nov 07, 2016

Amazing course!

Thanks for everthing.

创建者 Daniel R

Feb 19, 2016

Great! And the project is wonderful!

创建者 Diego B

Apr 10, 2019

Really constructive and nice course

创建者 Greg V

Mar 06, 2019

A very practical and useful course!

创建者 Gencay I

May 07, 2018

It was challanging and informative.

创建者 Subramanya N

Dec 12, 2017

Nice course. Learnt a lot of tricks

创建者 Germán A F G

Dec 07, 2017

very difficult, but I learned a lot

创建者 Chinmoy D

Sep 09, 2017

nice and quite informative course !

创建者 Helvio M

Apr 14, 2017

Good course, worse the time I spent