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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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451 - 475 of 1,311 Reviews for Getting and Cleaning Data

By Melanie B

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Feb 21, 2018

All started coming together for me in this course!

By Laurent b

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Feb 9, 2018

Very dense course and a lot of things explained...

By Hawk G

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Jan 17, 2017

Very good introduction in advanced R capabilities.

By Trung N T

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Nov 7, 2016

We have good course, thank you very much, teacher!

By Carlos R R

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May 8, 2017

Thank you for the coruse. It's a very good course

By Nishan M

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Oct 16, 2016

Great course for a budding data analyst/scientist

By Yang L

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Aug 15, 2016

Brief instroduction of getting and cleaning data.

By Alberto T

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Apr 5, 2016

Love the new strategies that learn in the course.

By Toni R

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Mar 6, 2016

This was an incredibly useful and amazing course!

By Varun C

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Apr 16, 2020

Well Designed course with Good level of Projects

By Servet D

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Aug 27, 2019

I learned why cleaning data is important. Thanks

By Marina K

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May 17, 2019

This course was very helpful and easy to follow.

By oscar l

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Sep 12, 2017

excelente curso claro, completo y muy dinámico.

By Henrique A

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Nov 27, 2016

Great course! I learned a lot from it! Thanks!!!

By Giri b

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Apr 3, 2016

A good course for dealing with different types o

By Meri A

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Jun 17, 2019

I find it very challenging and I learned a lot.

By Royce S

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Oct 11, 2018

Very useful content and challenging assignments

By Laro N

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Mar 10, 2018

Good, like other courses of this specialization

By Connor B

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Aug 5, 2019

Great next step and enjoyed the course project

By Naveen S

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Dec 10, 2020

Good course to understand the data processing

By vijaygopal

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Sep 11, 2017

The course is great for beginners. Thank you!

By Sean

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Nov 14, 2019

Challenging but rewarding! Great community.

By Janet A R

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Dec 27, 2018

Thanks!!! It opened a whole new world to me!

By Abdullah

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Feb 8, 2018

thank very much and this is very good course

By Juliana C

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Sep 25, 2017

Great course to learn how to manipulate data