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.
1176 - 1200 of 1,311 Reviews for Getting and Cleaning Data
By Archana R
•Aug 31, 2016
good course. but some concepts are hard to understand for newbies. so felt it was a bit advanced in parts.
By Anupriya S
•Dec 3, 2021
course material was not clear and precise ..wish it was more explanatory to get our concepts more clear
By Sudarshan C
•Mar 1, 2016
The materiel covered in the course was great, but more assignments instead of quizzes should be added.
By John G
•Feb 23, 2017
Materials (video and written) only partially prepare the student for the quizzes and course projects.
By Minh L
•Mar 19, 2018
Not as clear and straightforward as R Programming. But definitely a worthwhile course to look at.
By teena g
•Feb 9, 2018
While the available content is good, I expected this course to take me to a more detailed level.
By Felix R
•Jan 31, 2019
Ups and Downs.
Some presented functions are deprecated according to official documentation...
By mohamadreza a
•Dec 20, 2020
Course project was really vague and it took me 3 days to understand what is really wanted
By Brandon W
•Aug 11, 2020
The lessons are good, but they do not prepare you for the tests or end-of-course project.
By Nathan H
•Sep 17, 2018
The assignments required A LOT of help outside the information provided in the lectures.
By Jack H
•Jun 1, 2020
Not as good as the other courses offered by this specialisation. In need of an update!!
By Himanshu R
•Oct 26, 2017
Need more lectures on R packages and newly added packages like reshape, dplyr etc.
By Juan A S O
•Apr 25, 2016
The evaluation part of the course needs some fixing. Otherwise, very good course!
By Samidha S
•Sep 2, 2017
Course touches points very superficially. Need to have better reference material.
By Edward A S M
•Nov 3, 2019
More examples of code running in parallel with the course work will be helpful.
By Derek R
•Dec 15, 2017
This course really gets you working with R. The swirl exercises are great.
By ISH G
•Mar 5, 2016
very nicely made course providing a good hands on with R language. Thanks!
By 엄태인
•Jul 26, 2021
The letrue should be updated. Most of the URL address is not accessible
By Jean-Francois J
•Feb 5, 2017
The course isn't that hard but there is a lot of content to assimilate.
By Gianni K B
•Jan 29, 2023
Information used in the lesson are outdated, so it is quite useless.
By Doug E
•Jul 27, 2016
Topics were OK but the focus on R and no other tools is frustrating
By Fabien N
•Nov 8, 2019
The course was good but a bit too versatile for such hard quizzes.
By finbar k
•Jun 26, 2018
Vague instructions in many of the quizes and the final assignment.
By Jatin N S
•Mar 28, 2022
It would be better if for each function there were more examples.
By Lee C W
•May 27, 2018
Average. Not useful even to tackle its own quizes and assignment.