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

4.5
stars
8,070 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.

BD

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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426 - 450 of 1,313 Reviews for Getting and Cleaning Data

By Raphael K

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Sep 21, 2020

Very good collection and exercises that are on-point.

By Olav N

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Jul 28, 2020

More practical examples of the topics would add value

By Sebastian R

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Sep 19, 2017

This course will let you manage your data as you want

By Ravindra B A

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Apr 23, 2017

Very informative.. specifically the 4th week project.

By Pieter O

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Jan 11, 2017

Great course! allowed me to learn a lot of new skills

By Stepas L

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Dec 19, 2016

Loved this course,best so far from all data science .

By Weiwei T L

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Mar 25, 2016

Really helpful on a subject that's not often covered.

By Barnabas J K

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Oct 10, 2024

Excellent and well structured for learning hands on.

By Marijus B

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Mar 20, 2020

great course, specially swirl programming exercises.

By Nishant R S

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Sep 30, 2019

Very deeply explained and very accurately organised.

By Avizit C A

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Oct 8, 2018

This is a very good course describing basic data ext

By PRATHAM S

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Sep 30, 2021

Amazing course to gain knowledge about data Science

By Graciano P

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Nov 6, 2019

Great course for getting and cleaning data using R.

By Akansha K

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Apr 12, 2019

Great course and easy to understand for a beginner.

By Justin A B

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Dec 28, 2018

Very challenging but very fulfilling when completed

By Deepak S

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Oct 27, 2017

good material for the beginner kind of candidates..

By Apoorv S

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Sep 4, 2017

From this you will good understanding cleaning data

By Changkeun K

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Jul 9, 2017

this course lead to data science world more closely

By Saurabh K

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Feb 18, 2017

Very useful and detailed summary of advance methods

By Marcus S S

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Jan 21, 2017

A good first step in order to manage big data sets!

By Fan M

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Jan 7, 2017

This course is little fast for me but real helpful.

By Samir G

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Dec 29, 2016

Not the funniest one but very useful !! thank you !

By 赵东昱

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Dec 2, 2016

This course is quite hard, but it's really great!!!

By Robert T

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Nov 13, 2016

Excellent information on getting and cleaning data.