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

4.5
stars
8,072 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

RR

Jul 9, 2017

I found the last project insufficiently explained. I was struggling in understanding what the task is. A bit more clear task description (as in Course 2) would be really appreciated.

AB

Oct 15, 2017

This course is very enlightening. The techniques demonstrated in this course are critical for gathering raw data from various sources and turning it into useful data for analysis.

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526 - 550 of 1,314 Reviews for Getting and Cleaning Data

By Mateo E L

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Jul 18, 2020

Great course, I really enjoyed it!

By Kunal K

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May 19, 2020

It's a great start to Data Science

By Klever M

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Jan 25, 2019

Great course. I really enjoyed it!

By Raghu P M

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Nov 5, 2018

Very nice presentation of concepts

By Gustavo C G

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Oct 23, 2018

Excellent knowledge and instructor

By Ken W

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Dec 11, 2017

Applied what I learned from day 1.

By Ng Y H J

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Jan 4, 2017

A very nice and structural course.

By Ricardo M S

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Jul 3, 2016

Awesome material and lots to learn

By Yergali B

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Mar 16, 2016

very useful course for making data

By Lam L D

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Jun 28, 2020

a course for every data scientist

By Luis F R A

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Aug 1, 2019

Learned a lot. Thank you so much!

By Cynthia M P

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Jan 25, 2019

I learned so much in this course!

By Rajat V

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Jun 8, 2018

needs improvement and upgradation

By icu

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Mar 25, 2018

The volume of vice sounds to low.

By Manuel E E M

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Nov 9, 2017

Ayuda mucho a manejar data frames

By Suriya

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Nov 1, 2017

This course covers the essential

By Jeff H

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Jul 19, 2017

learned a lot about cleaning data

By Tatyana L

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Sep 29, 2016

Thank you, it was very practical!

By 郑俊（Jun Z

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Jun 21, 2016

Have challenges, but very useful!

By YASSINE M

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Nov 27, 2020

good course with an easy English

By Courtney P

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Jul 17, 2019

Very useful and enjoyable course

By Olga S

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Aug 29, 2018

I learned so much! Great course.

By Xiuyuan L

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Mar 22, 2018

Good class. Learn a lot from it.

By Marouan K

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Jan 2, 2018

Very hard class, learned a lot !

By Luv K

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Jul 12, 2020

the finest course on this topic