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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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476 - 500 of 1,311 Reviews for Getting and Cleaning Data

By Francisco J G C

Jul 31, 2020

Excellent course with great study material.

By Mckayla H

May 7, 2020

这门课很仔细地介绍了数据获取和清洗的过程,讲解了一些很好用的r包,通俗易懂,卓有启发。

By Yuyang L

Sep 11, 2016

Thanks! I learnt a lot of practical skills/

By Sindre F

Apr 7, 2016

Very useful and relevant knowledge to have!

By anjali s

Oct 5, 2020

very well presented and taught. thank you!

By Ziwen L

Aug 8, 2019

The process of learning is very rewarding.

By lotfi R

Mar 24, 2018

nice course for the cleaning data using R,

By Abhishek B

Dec 20, 2017

Gets you started on basics. Good practice.

By Md G M

Jul 5, 2017

Very descriptive with good study material.

By Light0617

Aug 7, 2016

It taught a lot of tools and introductions

By M M

Jan 27, 2016

One of the best courses for Data sciences!

By Robert J C

Jun 10, 2019

Good to play with R for making tidy data.

By Arushi A

Nov 25, 2017

Amazing course content and assignments :)

By Ravi K

Oct 13, 2016

Nice content and assignment!! Enjoyed it.

By Pengfei L

Jun 1, 2020

A good course for starter of R language;

By Mali N M

Apr 24, 2020

very difficult to solve some assignments

By mandar v

Apr 8, 2020

Great course good for getting introduced

By Neha P

Feb 13, 2020

Good experience with excellent knowledge

By Ramy H

Aug 28, 2017

Excellent delivery of the course content

By Prathamesh

Jun 16, 2017

Course Project was absolutely brilliant!

By Roland P

Nov 12, 2017

Great course for hands-on data munching

By Alejandro C C

Sep 20, 2016

Great way to learn how to optimize data

By Mauricio P

Sep 26, 2017

Good material and excellent exercises.

By Sourav B

Jul 12, 2017

Very important part taught intuitively

By Venkatesh

Jun 30, 2017

Very well designed for beginners in R.