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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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576 - 600 of 1,314 Reviews for Getting and Cleaning Data

By David W (

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Aug 1, 2019

very thorough and complete

By Gabriele R

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Jul 15, 2019

Wonderful course, as usual

By Jagat R S

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Feb 17, 2019

Great learning! Thank you.

By carl w

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Jun 26, 2018

Lot of useful information.

By Luis M M R

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Dec 26, 2017

Very good.

Congratulations!

By Souvik S

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Nov 16, 2017

exceptionally great course

By Sean O

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Jul 27, 2017

Much better than course 2!

By Pietro B

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Apr 23, 2021

very nice and interesting

By Nachiketas N

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Jan 21, 2020

Very useful and hands-on.

By Shailesh P

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Aug 19, 2019

Excellent course content.

By Leonardo S

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Feb 28, 2017

Informative and complete.

By Abhinav K

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Jun 10, 2016

Don't wait!!! just enroll

By Miguel E P

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Apr 24, 2016

Dinamyc and very usefull!

By xuwei. l

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Mar 2, 2016

fantastic course material

By Huang-Hsiang C

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Jun 1, 2020

Very practical material.

By Muhammad Z H

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Sep 10, 2019

Excellent, Learning alot

By Alzum S

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Mar 5, 2018

It's very awesome course

By Avinash A

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Aug 30, 2017

Very Informative course.

By 吴承科

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Aug 15, 2017

very useful and helpful!

By Sabyasachi M

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Jan 31, 2017

Great teaching method :)

By Geetha S

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Aug 21, 2016

Very informative course.

By Juan G

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Jun 27, 2016

Excelente muchas gracias

By Vincent M

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May 9, 2021

Keep up the great work!

By BHUPATHI P

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Jun 12, 2020

Very informative course

By Abhi S

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May 29, 2017

good introductory class