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

4.5
stars
8,047 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.

BE

Oct 25, 2016

This course is really a challenging and compulsory for any one who wants to be a data scientist or working in any sort of data. It teaches you how to make very palatable data-set fro ma messy data.

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476 - 500 of 1,306 Reviews for Getting and Cleaning Data

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.

By Hua S

Jun 13, 2017

I've learned so much from this course!

By Karel Š

Feb 3, 2017

Nice and hard course, which is good :)

By Emanuele M

Feb 8, 2016

Course is really well done and useful.

By Mohamed A

Jul 28, 2017

Rally well course i sugeste it much .

By Bauyrjan J

Oct 31, 2016

One of the best courses of the track!