Difficult to follow and course curriculum not fully in line with the quiz. This course could easily span 6 weeks to avoid information overload and unnecessary time pressure while working full time and with family responsibilities. Optional SWIRL exercises should be revisited between Course 2 and Course 3 as there's very little time within each week.

I learned something, of course, in this course. But without previous experience in data science, I found it OK to understand the lectures, but always got lost in the coding assignments. I tried to finish it on my own, but it turns out I have to search everything online. I felt that there's a big gap between lectures and assignments.

For me as non programmer, the course resulted sometime hard to follow. Simply adding a pointer when Prof. Peng is showing a slide it would improve the understanding.

T​he course wasnt really explanatory. the materials is different from the assignment. it can be much more better and simplified

While the lectures were informative, the programming assignments went way beyond what was covered in the lectures.

This course was not what I've expected. The functions lessons were not achieved, because it was not teached well.

Presenter uses undefined/unexplained terms regularly which most users would not be familiar with.

very good course but you need much more time then announced to finish the assignments

Tutorials are indispensible for students to complete the assignments.

This course is for programmers.

Needs to be more interactive

This course was very poorly taught. It has important information, but the course itself doesn't prepare students for the assignments. Not only is the only presentation of information through videos of text, but the professor stumbles over his words so badly not even the subtitles are correct half the time. I honestly feel like I taught myself most of the material. Even if you grasp the presented information, it's not helpful for the assignments. It was like teaching a child their ABCs and then asking for a paper – they technically have the tools, but zero experience and don't even know where to start. This class would be heavily improved if, 1) Information was presented in a textbook-like way for reference and clarity, and 2) There were any sort of guided/practice problems or examples similar to what is expected in the assignments. I love taking classes, but this one was painful for me.

I believe many of the students taking this course might not have any prior coding experience. Personally, I found the assignments quite challenging (rather than intellectually stimulating or providing learning) as many of the issues and syntax used in the assignments were never elaborated in depth in the videos. There may be a few people with really good statistical and coding background, who may not find this review much helpful, But, being new to coding, I can understand this and I believe the people who really need this course to equip themselves with these lessons may not be adept at solving some of the problems asked in the assignments. Please take this constructive feedback into consideration while modifying this course (if you do so). Otherwise, it was a wonderful course and gave same basics to build a foundation in R. Thank you.

Swirl is an amazing learning tool and it was the best of the course. However, unfortunately the course videos and supporting material does not help too much in order to complete the Programming Assignments, specially the videos. There is a huge distance from what has been teached or maybe how it has been teached to what was asked to do during assignments. Nothing against to a good task, but would be fair to provide a proper knoledge (e. g. including examples at same level of the assignments, maybe something step-by-step) so we could complete them without spending so many hours looking for other sources which provide what maybe some of us were expecting to find right here.

The course was somehow frustrating and disapointing on this matter and I don't feel confortable in recommending it.

Not very well organized overall. The assignments were fun, but I had to do extensive research online to find out how to answer the questions being asked, which made me wonder why I had sat through the videos. Sometimes I didn't even use what I learned in the videos to complete that week's assignments. The videos are far too theoretical, they probably would have been useful for someone familiar with R or S, but for a new user they required a lot of rewinding and without practical examples it was hard to actually remember what was being taught. In the rare instance practical examples were given the material stuck much better!

The assignments are not gradual, I mean the content of the classes is not enough for the completion of the assignments. I think I would have appreciated more content in the classes, more explained exercises so that the making of the assignments wouldn't have been so miserable! It's a very hard course.

But I've learned a lot on my own, thanks!

Huge disconnect between the canned lectures (almost all not by Peng) and the exercises. Moreover, other than generating random number distributions, there are no examples of the lecture material worth anything. Given the subjects covered, the course could be great

The contents of the lectures are quite hard to follow, and exercises do not have much relationship with them. Difficult to follow the course, even with other programming languages skills.

The assignments are too difficult compared with the knowlegde taught in the videos and swirl

Assignments too difficult, compared to the amount of explanation and swirl exercises...

This was the worst learning experience I have ever had.

You learn with the videos, although these were frequently delving into subtleties that only the professor could appreciate, you do the swirl lessons (that don't count for anything, but the course still tells you to submit a key to record completion), then you are handed a programming assignment that doesn't use anything you just learned; instead you are told to "Google it." Are you kidding me???

The assignment deals with R over 8 years ago, if not more, but R has been updated several times before.

The R lab that they keep bragging about hardly ever works; a complete sham. The mentors tell you essentially to suck it up, and don't help.

There is no pedagogy here; only taking your money and not caring.

I am extremely disappointed with the quality of this course. I am a professional analyst and have some years of programming, I intended to "formalize" my knowledge in R and data science by taking this course. This course is organized in a very poor manner, lectures and assignments are completely disconnected, the instruction in the assignment is also extremely poor, it is very hard to understand what the learner is expected to do, it is very frustrating and I cannot imagine this course is intended for "beginner". I managed to finish that just because it is sponsored by my company. 0 out of 5 stars

This is really frustrating as the assignment seems like completely out of course. Given that we are paying for the course, it becomes challenging to complete it on time. I am paying the fees second time as I was not able to complete the course on time.

Advise you to bring down the course charges or charge once only. If you guys really take reviews seriously then please read all the review and you will find the same issue of gap between huge gap between assignment and lectures.

Course is very poorly laid out. Programming assignments and quizzes have completely new, much more advanced material compared to what was taught in the lecture. I have some R background from taking other courses and wanted to further my education but this course really turned me off from learning the language. I was expecting the course to be challenging in a manageable way, but I feel let down by how prohibitively difficult and incongruous the programming assignments are.

The worse Coursera course I've ever taken. The videos feel like someone reading the technical documentation to you, the "interactive" tutorials are like an 1980s text-only game, and the assignments require massive leaps in ability over what you learned in the lessons. I would call this course "Advanced-level assignments sure to both bore and frustrate people new to R"