Learner Reviews & Feedback for Getting and Cleaning Data by Johns Hopkins University
About the Course
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.
1051 - 1075 of 1,296 Reviews for Getting and Cleaning Data
By Fabio P
•Oct 14, 2017
A good course
By Sabawoon S
•Jun 28, 2017
Very helpful.
By Venkata N K T
•May 10, 2016
Very valuable
By Ted S
•Jan 31, 2016
Great course.
By Harsha G
•Mar 3, 2016
very helpful
By Giorgos A
•May 26, 2019
good course
By M C
•Jan 22, 2021
Pretty OK
By Greg B G
•Oct 3, 2016
very good
By Khobindra N C
•May 18, 2016
Excellent
By Luiz C
•Sep 16, 2017
Useful
By Nithya M
•Jun 23, 2017
Great!
By Shreya S
•Mar 20, 2017
great
By Veena M
•Feb 21, 2016
good.
By Chuang M
•Feb 6, 2016
Great
By Marcos A
•May 12, 2019
Good
By Nithin k G
•Nov 16, 2018
Good
By Ashish S
•Feb 6, 2017
good
By shipra g
•Aug 8, 2016
Good
By Vivek R
•Feb 7, 2016
Good
By Mrunal 1
•May 8, 2021
-
By Dimitri d
•Feb 23, 2017
.
By Sergio E R G
•Nov 27, 2016
4
By sugyoo
•Oct 22, 2016
A
By Borja C
•May 7, 2016
.
By Miguel C
•Mar 25, 2020
I really enjoyed and learned a lot in this course.
I feel a lot more comfortable with looking for and reading data. I learned how to clean data and getting it ready for further analysis. I think the course project was particularly good for completely understanding the process of tidying data and all the aspects it involves, such as writing a code book and a README file for accompanying it.
Furthermore, I believe I further developed my R programming skills, by learning how to code new things or things I already knew but in a more efficient way, by using new packages and techniques.
Moreover, I found Professor Jeffrey Leek quite engaging, very easy to understand and I had complete confidence in his knowledge on this subject.
However, I believe the course is slightly outdated. I was often disheartened and frustrated by not being able to replicate what was being done in the lecture videos. For example, there were many links that did not work anymore and sometimes information that simply wasn't correct anymore. I found the discussion forums and many mentors responses to be very helpful. I think this can easily be fixed by writing up an errata or updating the lecture videos.
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