HS
2020년 5월 2일
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
2016년 2월 1일
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.
교육 기관: Juan D P M
•2021년 10월 13일
Some lessons are pretty good, but there is a gap between the lessons and the assigments. You're evaluated in some aspects that are not very explained in the lessons.
교육 기관: Sahil S
•2021년 1월 16일
Assiignments are out of date, some commands are deprecated. Also, the quizzes and projects require more in depth lessons or practice problems to complete. Thank you
교육 기관: Yuqi J
•2019년 1월 14일
Some of the lectures on loading data were very dry, but I guess that can't really be helped. Also the final course project's requirements were on the vague side.
교육 기관: Buddsalakhum R
•2021년 3월 1일
I think this one is easier than the R programming but still, more exercises to practice would be good. Also, the assignment's explanation should be more simple.
교육 기관: Samantha H
•2018년 5월 30일
It would be better if we had practice problems along the way. This course seemed to have a lot of commands that didn't stick until I put them into practice.
교육 기관: András H
•2018년 3월 4일
This is an important course, but many updates will be needed. There are only a few exercise task, there could be more. The swirl part of the course is good.
교육 기관: Andrew C
•2016년 9월 20일
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.
교육 기관: Amir A S
•2020년 3월 8일
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.
교육 기관: Ranto R
•2020년 7월 6일
The content of the course is very interesting and useful. However, I found very challenging the difference between lectures and quizzes/assignements
교육 기관: Bijan S
•2016년 1월 30일
The selection of topics is great. However, the course is too abstract. I think some of the materials deserve to be discussed more comprehensively.
교육 기관: Paymon H
•2016년 4월 14일
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).
교육 기관: nicolas r
•2021년 9월 15일
Some assessments are not well related with topics developed during classes. Then, it is difficult to understand what it is the goal to achieve.
교육 기관: Daniel D
•2019년 9월 3일
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.
교육 기관: Teodor I
•2018년 1월 9일
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.
교육 기관: Nishi G
•2017년 4월 27일
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.
교육 기관: Paul M
•2018년 5월 15일
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.
교육 기관: Richard C
•2018년 5월 10일
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.
교육 기관: Siarhei K
•2021년 3월 16일
great materials but unrelated to assignments. great real life experience "here is link. make it nice. deadline yesterday"
교육 기관: Diana L G
•2020년 5월 18일
Sometimes I felt the were not evaluating my learning or ability to do things but my ability to read instructor's mind.
교육 기관: Hassan D
•2020년 4월 17일
it gives us good information, but the information sometimes are incomplete or need to be updated( created in 2014!)
교육 기관: Archana R
•2016년 8월 31일
good course. but some concepts are hard to understand for newbies. so felt it was a bit advanced in parts.
교육 기관: Angel_Eyes E
•2021년 12월 3일
course material was not clear and precise ..wish it was more explanatory to get our concepts more clear
교육 기관: Sudarshan C
•2016년 3월 1일
The materiel covered in the course was great, but more assignments instead of quizzes should be added.
교육 기관: John G
•2017년 2월 23일
Materials (video and written) only partially prepare the student for the quizzes and course projects.
교육 기관: Minh L
•2018년 3월 19일
Not as clear and straightforward as R Programming. But definitely a worthwhile course to look at.