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Kursteilnehmer-Bewertung und -Feedback für Getting and Cleaning Data von Johns Hopkins University

7,525 Bewertungen
1,213 Bewertungen

Über den Kurs

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 03, 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 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.

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926 - 950 von 1,173 Bewertungen für Getting and Cleaning Data

von 李俊宏

Sep 16, 2017

good! but I hope that Jeff can make more examples

von Laura B

May 18, 2017

Good but needed more info to complete assigments.

von Shivanand R K

Jun 21, 2016

Great and Excellent thoughts and course material.

von Yunfan T

Jul 28, 2017

the course lecture is not enough for assignment

von Marina V V

Dec 20, 2018

More swirl exercises! They are really helpful

von Manny R

Aug 10, 2017

Time consuming and Challenging but very good.

von Patrick B

Nov 20, 2019

Challenging assignment. Interesting material

von Gustavo T P

Sep 26, 2018

Good course, but se subject, not so mutch...

von Alex s

Dec 29, 2017

The last project instructions were unclear.

von Mehul P

Sep 11, 2017

Nice explanation on cleaning data activity.

von Niranjan

May 22, 2017

Great course materials!! Great effort!! :-)

von Marcos A V

May 15, 2017

I've learned much about reading data in R!

von Daren T

Feb 08, 2016

was tougher than expected. i learnt a lot!

von Chong C F

Sep 07, 2016

Well pack, but could have more practice.

von Andrew K

Jun 09, 2019

The class could have better uniformity.

von Guillaume H

Dec 02, 2016

Useful technics to make things workable

von Tharindra P

Apr 15, 2020

Great content and hands on experience.

von Ada

Nov 14, 2016

Well done. Thanks for a good course.

von Lluis G

Nov 08, 2016

Nice set of techniques and methods!

von Jehan H

Jan 11, 2020

The course has useful information.

von John B

Oct 11, 2020

Guidance and instruction is good.

von Rajib K

Feb 26, 2017

need to be crisped, over all good

von Paras B

Apr 07, 2018

Great course for the beginners!!

von Shahrokh N

Feb 10, 2018

Nice course and worth taking it.

von Joseph L

Sep 16, 2020

Videos weren't detailed enough.