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

4.5
stars
8,048 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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1301 - 1307 of 1,307 Reviews for Getting and Cleaning Data

By Ahmed H E

•

Aug 29, 2019

the learning way in this course was bad, to me

By babak k

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Jan 9, 2019

It is more about R rather than data science

By Du Z

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Aug 30, 2017

Poor teaching! Almost a waste of time.

By JaeHyun L

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Nov 5, 2018

I don't think it's necessary lecture

By Ankit A

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Dec 13, 2016

lectures are too fast.dropping out.

By Danil B

•

Jun 12, 2023

Significantly outdated material

By Alexandros T

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Aug 5, 2016

Poorly constracted course!