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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.


301 - 获取和整理数据 的 325 个评论(共 1,211 个)

创建者 Raphael P

Jun 23, 2018

I started with this course to understand the logic of ordering of the series.

创建者 Gustavo P F d X

Jan 15, 2017

Wonderful course for those who are keen on expand their knowledge n R skills.

创建者 Bruno K

Feb 17, 2016

Great course! The course content is very good and the length is appropriated.

创建者 Marco M

Oct 9, 2020

Really good course! It could be even better with more labs in the beginning.

创建者 Scott D

Dec 30, 2018

This course is great. The tactical skills in R you really need on the job.

创建者 Jessica R

Apr 3, 2018

Very useful course on how to prepare data so it can more easily be analyzed.

创建者 吴昊

Mar 3, 2018

Very helpful source. Introduce the basic and important concept of tidy data.

创建者 杜冈桃

Sep 7, 2017

Coursera is very practical and I am ready to continue to study more courses.

创建者 Catharine

Mar 16, 2017

Very helpful and practical course to learn about data sourcing and cleaning.

创建者 Juan C P A

Mar 28, 2016

Recommended for all who want to manage their data and not be handled by them

创建者 Jeff L J D

Oct 10, 2020

This a great course especially for a beginner like me. Thank you very much.

创建者 Eswara K

Jun 4, 2020

Great course. Only nitpick is that the volume of data to work with is huge.

创建者 Mevluet P

May 26, 2020

It is a very good course. It is my reference page and course about using R.

创建者 Michael P D

May 22, 2020

Provides great foundational knowledge of building usable data objects in R.

创建者 Jesson P

Sep 30, 2018

This course taught me the importance of tidying data suitable for analysis.

创建者 Leonard P

Nov 30, 2020

Exceptional course with a steep learning curve, But it's totally worth it.

创建者 Mahmoud E

Oct 1, 2018

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

创建者 Jamie M

Jul 6, 2018

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


Sep 10, 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 Arturo P

Dec 10, 2020

Excellent course, really good for managing messy data. Fully recommended!

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 Filip Z

Sep 11, 2020

Great course. I learned what i wanted to learn in a very convenient way.

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 2, 2017

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