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

4.5
stars
8,062 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

HS

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.

DH

Feb 1, 2016

Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.

See the videos for general presentation, but use the energy on the excersizes.

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551 - 575 of 1,311 Reviews for Getting and Cleaning Data

By Alessandro M

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Jul 22, 2019

Very good and well done course.

By Alex B

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Jun 12, 2019

Supperb. Exactly what I needed.

By Bora A

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Jul 31, 2018

Thanks for the excellent course

By Billy J

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Feb 5, 2016

Challenging, but in a good way!

By Mohd I S

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Sep 22, 2018

Great project course challenge

By Jesús A

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Feb 12, 2018

Challenging course! I loved it

By Antoine d L

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Nov 16, 2017

Nice and challenging exercices

By Umer A

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Aug 8, 2017

A very well structured course.

By jirong h

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Sep 18, 2016

Useful to get the basics right

By Lucyna K

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Dec 19, 2020

Fantastic - highly recommend!

By Basel T

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Jun 30, 2020

well structured and fantastic

By Shashwat K

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Jul 26, 2020

Great concepts and teaching.

By Vibhutesh K S

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Nov 17, 2018

It was really a good course.

By 卢君

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Apr 11, 2018

A little bit hard for newbie

By Javier A

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Mar 16, 2017

Very useful. Well structured

By Avtandyl R

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Nov 28, 2016

Cool course,very useful info

By Sudhir B

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Jul 7, 2016

The examples used were good.

By Shayan A K

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Apr 23, 2016

outstanding!!. learnt a lot.

By Benedikt K

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Jan 19, 2022

tough, yet so informative!

By Farah N

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Jan 6, 2019

I liked the course project!

By REEK M

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Jan 22, 2018

Toghest assignment till now

By Mauricio C

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Dec 30, 2017

Tough one! I learned a lot!

By Marco L

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Jul 13, 2016

Excelente, muy recomendable

By Khem W

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Jan 20, 2023

really help up the thoughs

By David W (

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Aug 1, 2019

very thorough and complete