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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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676 - 700 of 1,314 Reviews for Getting and Cleaning Data

By Iair M L S J

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Jan 18, 2017

awesome proyect

By Bindiya S

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May 20, 2016

Perfect content

By Ariel F

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Oct 23, 2022

great course!

By Agustin

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Oct 27, 2020

Great course!!

By Max

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Sep 28, 2020

Awesome course

By Mario A C A

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Jul 30, 2020

Me gusto mucho

By Paulo F

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Feb 20, 2020

Very helpfull!

By Khangjrakpam A

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Feb 19, 2020

learnt a lot!!

By Randall J

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Sep 15, 2019

很实用的课程，课程安排很用心

By Pasha T

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Feb 21, 2018

Amazing class!

By GIDEON O

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Nov 25, 2017

Great Course !

By Antonio M P

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Aug 30, 2017

Great training

By Larry G

•

Feb 7, 2017

kind of simple

By Sanduni N J A

•

Nov 21, 2016

Very helpfull.

By Ramprabhu N

•

Feb 10, 2016

A Great one ..

By Jun L

•

Oct 6, 2020

learned a lot

By Roque R

•

Jul 25, 2020

Great course!

By Johan V M

•

May 25, 2020

Great course!

By José C

•

Nov 3, 2019

Great course!

By André M

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Aug 20, 2019

Great Course!

By Nada G

•

Jan 31, 2018

Great course!

By Sandra G

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Dec 14, 2017

Great course!

By Haoxiang Z

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Nov 4, 2017

Learned a lot

By WANG H

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Oct 23, 2017

Good course !

By Doug A

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Oct 8, 2017

Great course.