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Learner Reviews & Feedback for Getting and Cleaning Data by Johns Hopkins University

4.5
stars
8,073 ratings

About the Course

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....

Top reviews

BP

Feb 3, 2018

The course is an excellent introduction to the dplyr package and string manipulation in r. I thought the assignment at the end of the course was a little vague and hard to understand

WC

Oct 31, 2016

This course is amazing! I have spent the majority of my time in R merely doing analytics. This course taught me the tools needed to go out and grab the data that I need for those analytics.

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701 - 725 of 1,314 Reviews for Getting and Cleaning Data

By Deliang L

•

Jul 11, 2017

Very helpful.

By henri b

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Jul 4, 2017

très complet

By Dennis L

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Jun 19, 2017

Good content!

By Jay S

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May 30, 2017

Great course!

By Vinay K

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Sep 29, 2016

Great Course.

By Jiawen C

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May 4, 2016

Great course!

By udbodh s

•

May 2, 2016

Powerful tool

By Davi C

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Feb 29, 2016

Learnt a lot!

By Robert N

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Feb 9, 2016

Very helpful.

By Mónica C

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Jul 31, 2020

Very usefull

By Heidi P

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Sep 25, 2019

Challenging!

By Onedio S S J

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Jul 13, 2019

Excelent!!!!

By Tushar M

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Feb 25, 2019

Nice course.

By gerson d o

•

Jan 17, 2019

EXCELENTE!!!

By Razib A K

•

Oct 21, 2018

Very helpful

By Ganesh R

•

Sep 4, 2018

Nice Course.

By César S

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Sep 2, 2018

Good course!

By shashwat k

•

Aug 18, 2018

good course.

By Ramya S

•

May 19, 2018

Great Course

By Craig S

•

Oct 22, 2017

Really good!

By Dharmendra P

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Aug 23, 2017

Great Course

By 박기중

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Aug 19, 2017

Good course.

By Reem S

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Jan 7, 2017

Very helpful

By kamez 0

•

Dec 18, 2016

Insightful !

By João P S

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Aug 15, 2016

Nice course!