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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

RR

Jul 9, 2017

I found the last project insufficiently explained. I was struggling in understanding what the task is. A bit more clear task description (as in Course 2) would be really appreciated.

CW

Aug 6, 2020

I think that the level of difficulty of the exercises and final assignment does not match with the depth of the lectures; without a textbook, I feel lost, don't have a reference, and have to guess.

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1301 - 1313 of 1,313 Reviews for Getting and Cleaning Data

By Indraneel B

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May 1, 2016

Description of assignment questions is not clear. The expected answer from the questions are confusing.

By Sreevalsan M

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Jun 17, 2020

The peer grading looks weird. I got a comment on my original work "seemed to be not written by me".

By Tom

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Jun 7, 2017

final project is terribly defined. Lecturers, Coursera, and Johns Hopkins should all be ashamed.

By Josh H

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Oct 25, 2017

Very scattered and unfocused course. Sad to say that I learned very little from this one.

By abhishek s

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Feb 25, 2016

This is just because of the unclarity of the final assignment.

By Ian H

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Apr 12, 2018

Terrible! Go to Data Camp and save a bunch of money!!!!

By Ahmed H E

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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

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Jun 12, 2023

Significantly outdated material

By Alexandros T

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Aug 5, 2016

Poorly constracted course!