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

4.6
stars
7,284 ratings
1,163 reviews

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 03, 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 02, 2016

Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.\n\nSee the videos for general presentation, but use the energy on the excersizes.

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226 - 250 of 1,124 Reviews for Getting and Cleaning Data

By Alfonso L

Mar 20, 2020

Need to take some time to learn. A lot of stuff in so short period of time but really worthy

By Hariharan D

Jul 13, 2017

Excellent course. Interesting to learn through this experiential hands-on pedagogy approach.

By Rodrigo C

Oct 12, 2017

Se enseña el uso de herramientas muy útiles a la hora de transformar raw data en tidy data.

By Thiago

Aug 12, 2019

Course material and projects help a lot in learning and improving data analysis techniques

By José E T

Aug 05, 2017

Very good course. Taught at the correct depth. He added a lot of knowledge to my training.

By Eric F

Nov 06, 2016

Excellent cours pour la mise en œuvre de méthodes robustes sur la préparation des données.

By Gayathri N

May 07, 2020

Good course that helped to get the skill of reading and different ways to work with Data.

By Сетдеков К Р

Sep 27, 2018

Helped a lot form my understanding of a good workflow for data collection and processing.

By Lee W

Oct 05, 2017

Great course to introduce you to the various methods of loading and processing data in R.

By Ryan H

Sep 23, 2017

I really enjoyed this course. The instructors were good and the assignment was enjoyable.

By Alessandro P

Feb 09, 2016

Great course!

I think that cleaning the data in the right way is the key of data science.

By Patrícia A F

Apr 06, 2019

Great Course for you to learn in more detail how data processing works in Data Science.

By reem z

Jun 23, 2018

A great course and you learn exactly what the title says . I found it fun to work on It

By Tine M

Nov 14, 2017

Great course, I've learned a lot about analyzing data sets and creating tidy data sets.

By Robert K

May 01, 2017

Fantastic! I find myself using the information I learned in the class on a daily basis.

By Boris B

Feb 06, 2016

Great Course if want to know what data really is and how to handle it in the right way.

By Alia E

Feb 27, 2017

Wasn't excited about it. But I've used and re-used the materials for work. Good stuff.

By Tseliso I M

Feb 02, 2017

Of the courses I have done so far in the specialization, this was the most practical.

By Tacao M

Feb 03, 2016

Very interesting material and basic knowledge on R to read files and produce tidy data

By Tomas A M

Aug 22, 2017

Excellent course mates! Lots & lots of very useful info & examples! Thanks so much!!!

By Dmytro I

May 15, 2017

It's a great course, however, explanations to the final assignment were rather vague.

By Sambit C

Oct 12, 2016

A great course. Learned a lot. However student has to put an extra effort practicing.

By Kseniia K

May 03, 2016

Great course, more difficult than previous two, but also more challenging and useful!

By Wang J

May 02, 2016

Great practice for R programming and the MySQL part is extremely helpful for my work.

By Leonardo A

Aug 08, 2019

This is the best course so far. Very challenging project at the end. I learned a lot