Sep 24, 2017
Very good course! It provide me the foundation in learning how to plot and interpret data. This will definitely strengthen my "R programming" to generate publication type figure for my genomics data!
Jul 29, 2016
This is the second course I have taken from Roger Peng and both were outstanding. I have a strong math background, but not much of a background in stats, but this course was very approachable for me.
par Mohammad A A•
Mar 11, 2019
It was a very useful course with some meaningful homework. My only criticism is that sometimes the theory and the practice are not well connected. Particularly the discussion of PCA, hierarchical clustering, k-means clustering and others. It would be benefit by providing more meaningful reading for those interesting in better connecting the two
par Arne S•
Aug 31, 2019
did not like the swirl-tutorials. they were very tedious and sometimes labelled correct commands as false (e.g. when you typed = instead of <- for assigning a value to a variable)
also I was surprised that for a beginner programming course in R you had to apply specific functions such as grepl without the function being introduced in the course
par Haggai Z•
Aug 27, 2017
unfortunately this course was not in the same class as earlier courses
cases presented were not interesting or self explained.
concepts were wage and the lectures were boring
i think i need to take parallel course for the same knowledge targets i want to really understand this
par Thomas G•
Apr 26, 2016
A lot of broken swirl(), which wouldn't be so bad except *a lot* of this course is based entirely on swirl(). Also the swirl() text was almost verbatim of the lectures one has just watched.
All in all, good information, but the swirl() badly needs an update.
par Ray O C•
Dec 29, 2016
The first two weeks were good. The third was a bit confusing and the 4th one just felt like padding. A more in depth study of ggplot would probably be more beneficial as I felt like we were only scratching the surface with it
par Toby K•
Mar 01, 2016
Excellent overview of plotting and clustering. However, there were a few bits that were required for good completion of the projects that weren't covered in detail. Overall an excellent course and specialization.
par Ralph M•
Mar 09, 2016
Good course overall. There tends to be many lectures that are just lists of commands. Also, they don't seem to be updating the material. Many lectures are several years old and still have typos in them.
par Samer A•
Mar 30, 2018
It's pity that the final assignment doesn't involve the clustering and the principal component analysis. It was quite a demanding topic and I was looking forward to practicing it through solving tasks.
par Fabiana G•
Jun 23, 2016
Course feels somewhat abandoned by instructors. Content is okay, but can't help the feeling that it's basically a cash cow - students would benefit a lot if instructors were move involved.
par Ashish T•
May 05, 2018
Great introduction to the plotting libraries in R and visualization of data.
However the introduction to hierarchical clustering, and Principle component analysis was extremely vague.
Mar 10, 2016
The course content applies to R. The teachers focused on the programming language rather than the application of the existing graphs to explore data.
par Gianluca M•
Oct 13, 2016
A nice introduction to the three plotting systems in R. The second part is devoted to clustering, but it is not detailed enough to be really useful.
par Andreas S J•
Oct 04, 2017
Important and interesting stuff - but lots of it is repeated too much, which make it seem like 4 weeks is too much for the material.
par Dylan P•
May 13, 2018
I would have liked an assignment to focus on the clustering methods and I think dimension reduction was reviewed way too quick.
Feb 05, 2017
Course is good in general but "HIERACHICAL CLUSTERING" part is hard to understand and is not clear, should be explained more.
par Casey B•
May 12, 2016
Good class - links and slides have not been updated recently. Frustrating to finish without the exact linkts to the data.
par Katharine R•
May 03, 2016
Good course, but the SWIRL exercises (and a few quiz questions) needed to be updated for the latest version of ggplot2.
par Johnny C•
Mar 06, 2018
In general was good, but there were some lectures and exercises which were disorganized ("plots with colors")
par Erkan E•
Jun 24, 2016
I wish there several comprehensive examples of exploring some real data as guided by the course instructors.
par Mehrdad P•
Aug 26, 2019
The course was overall ok, but I wish discussions about k-means, PCA and SVD were divided into two courses.
par Daniel P•
Dec 08, 2019
I've learned plotting in R. I expect to learn more in four weeks of "Data Science" specialization.
par Francisco M R O•
Jan 08, 2019
The third and fourth week were a big leap in knowledge and not really well explained, for me.
par Sandeep D•
Mar 10, 2018
Excercises are very good. But I believe lecture could be more interesting and easily taught.
par Guy P•
Mar 26, 2016
It misses an assignment which will allow to practice the clustering skills.
par Alex s•
Jan 17, 2018
It focus too much on the tools and a little bit on the analysis