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.
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.
By Greg Y•
Apr 28, 2022
This course is terrible. Outdated videos (recorded in 2013!), impossible quiz questions, installing huge numbers of packages into R with no real support or feedback. Terrible waste of time.
By Minh V•
Sep 7, 2020
The instructor did not devote his time to teaching. Slides were poorly prepared. Links are not working. Although many students have raised the issues, nothing has been done for years.
By Javier G•
Mar 17, 2022
Awfull outdated material. The packages mentioned do not work with the current RStudio version. The presentation sheets are protected (all pictures) instead of extractable text.
By Arif V V•
May 2, 2017
Doesn't worth the effort. You learn the most by searching online tools each time you encounter a problem while solving a quiz problem or following the steps the instructor did.
By sotiris k•
Oct 16, 2020
almost all the videos from week 1 are outdated making it impossible to follow the course,i will propably drop it,this is something that should be addressed by coursera.
Jul 16, 2020
The course material was not of much help. Felt lost while doing the assignments. The instructor keeps forgetting that this is a beginners level course
By Brian M•
Oct 21, 2021
This entire program is an atrocious waste of time and resources. Get a book on Learning R from your local library and you'll be better off.
Aug 4, 2020
I may not able to submit the peer graded assignment. please help me to solve this. My progress is pending because of this assignment
By Alex T•
Jul 20, 2017
all the practical things had to be learned by self learning instead of in the course. Peer graded assignment took for ever to pass
By Yashar A•
May 5, 2016
The worst! I don't recommend you to take any course from this institute. It is just wasting time and money.
By Indraneel B•
May 1, 2016
Description of assignment questions is not clear. The expected answer from the questions are confusing.
By Sreevalsan M•
Jun 17, 2020
The peer grading looks weird. I got a comment on my original work "seemed to be not written by me".
Jun 7, 2017
final project is terribly defined. Lecturers, Coursera, and Johns Hopkins should all be ashamed.
By Josh H•
Oct 25, 2017
Very scattered and unfocused course. Sad to say that I learned very little from this one.
By abhishek s•
Feb 25, 2016
This is just because of the unclarity of the final assignment.
By Ian H•
Apr 12, 2018
Terrible! Go to Data Camp and save a bunch of money!!!!
By Ahmed H E•
Aug 29, 2019
the learning way in this course was bad, to me
By BabaK K•
Jan 9, 2019
It is more about R rather than data science
By Du Z•
Aug 30, 2017
Poor teaching! Almost a waste of time.
By JaeHyun L•
Nov 5, 2018
I don't think it's necessary lecture
By Ankit A•
Dec 13, 2016
lectures are too fast.dropping out.
By Alexandros T•
Aug 5, 2016
Poorly constracted course!