2 mai 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.
1 févr. 2016
Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.\n\nSee the videos for general presentation, but use the energy on the excersizes.
par Andrew C•
20 sept. 2016
The best course so far (though that's not saying much). This course would be better as a follow up to an example workflow showing an end to end analysis.
par Amir A S•
8 mars 2020
Not on par with the course sets before it, could have been a bit more explaining as cleaning data is one of the most important parts of data science.
par Ranto R•
6 juil. 2020
The content of the course is very interesting and useful. However, I found very challenging the difference between lectures and quizzes/assignements
par Bijan S•
30 janv. 2016
The selection of topics is great. However, the course is too abstract. I think some of the materials deserve to be discussed more comprehensively.
par Paymon H•
14 avr. 2016
Toughest class in the offering. There really could've been 2 classes for cleaning data. I struggled with the lecturer's style (spoke too fast).
par nicolas r•
15 sept. 2021
Some assessments are not well related with topics developed during classes. Then, it is difficult to understand what it is the goal to achieve.
par Daniel D•
3 sept. 2019
The project description could have been a lot more descriptive for what we were supposed to do. Otherwise, I had a lot of fun with this section.
par Teodor I•
9 janv. 2018
The non-clickable links in the pdf are a major problem. You need to figure it out. Create a link reference field for each video or something.
par Nishi G•
27 avr. 2017
To get value from the class, I used other on-line materials to understand the topic. Thus, I spent about 20 hours/week on this class.
par Paul M•
15 mai 2018
I felt I had to teach myself in this course. I feel I would have had the same learning experience if I had purchased a good R book.
par Richard C•
10 mai 2018
A lot of things covered in this course in a short time. Probably should have been 8 weeks with more homework done step by step.
par Siarhei K•
16 mars 2021
great materials but unrelated to assignments. great real life experience "here is link. make it nice. deadline yesterday"
par Diana L G•
18 mai 2020
Sometimes I felt the were not evaluating my learning or ability to do things but my ability to read instructor's mind.
par Hassan D•
17 avr. 2020
it gives us good information, but the information sometimes are incomplete or need to be updated( created in 2014!)
par Archana R•
31 août 2016
good course. but some concepts are hard to understand for newbies. so felt it was a bit advanced in parts.
par Angel_Eyes E•
3 déc. 2021
course material was not clear and precise ..wish it was more explanatory to get our concepts more clear
par Sudarshan C•
1 mars 2016
The materiel covered in the course was great, but more assignments instead of quizzes should be added.
par John G•
23 févr. 2017
Materials (video and written) only partially prepare the student for the quizzes and course projects.
par Lam C M•
19 mars 2018
Not as clear and straightforward as R Programming. But definitely a worthwhile course to look at.
par teena g•
9 févr. 2018
While the available content is good, I expected this course to take me to a more detailed level.
par Felix R•
31 janv. 2019
Ups and Downs.
Some presented functions are deprecated according to official documentation...
par Mohammadreza A•
20 déc. 2020
Course project was really vague and it took me 3 days to understand what is really wanted
par Brandon W•
11 août 2020
The lessons are good, but they do not prepare you for the tests or end-of-course project.
par Nathan H•
17 sept. 2018
The assignments required A LOT of help outside the information provided in the lectures.
par Jack H•
1 juin 2020
Not as good as the other courses offered by this specialisation. In need of an update!!