I have taken several courses on Coursera and this was by far the worst. First the course contained no lectures. The authors had basically copied segments of their textbooks along with code samples as teaching material. I could have done better by simply reading the textbook myself without paying for the course. Finally the way the final assignment is graded is terrible. It is as if the course organizers have completely washed their hands of any responsibility. You have to grade three peers so that your assignment will get in line to be graded. But there is no time line and the process is completely arbitrary. Students have to actively seek others on the class forum to grade their assignment (they will return the favor ). I really expected more from a course offered by JHU.

I learned a lot and appreciate the continued learnings.

This course helped the programmer understand some OO concepts and many other features of R that I may not have encountered. Very good, and the final assignment was good. It was worth putting the extra time in to do it correctly.

Very knowledge and rigourous course, developed for comprehensive concept building.

I like this course as it offers some really practical instructions to programming in R, and I think it's a course that well complements the online book Advanced R written by Hadley Wickham, which focuses more on theories.

Cheerful

Solid overview of the topics in the course description. Does not go into much detail but provides a very nice foundation to build on. The course book is and will be a handy and useful resource, as it allows you to revisit the course materials (minus the exercises) without having to navigate through the course on the platform.

Very good, recommended.

For me the course provided a quick and easy introduction to the 'purr' package as well as clarity on the current state of R's object oriented programming system.

The peer-graded assessment is really helpful for learning OOP implementing in R!

More information material will be helpful

Excellent course for improving R programming skills. Highly recommended.

this is a must for those who want to improve their programming skills in R. As an advanced course, this is a little bit harder, but don`t give up!

Very useful, I considered myself quite an advanced R user, but this class raised the level, especially with the R as OOB part. Good investment if you are not a beginner.

Great course material with engaging assignments. Strongly recommended.

The course has given me good insight into the functional and object oriented programming parts of R.

Awesome course! Learned a lot! It is mandatory if you would like to become an experienced R user, not just programmer!

Great course. Learned a lot about R programming in practical terms.

More advanced, challenging course. Still, enjoyable and enlightening. Mentoring on this course is really helpful too!

This course helped me to figure out what additional skills I need to work on to improve my R coding skills.

Exclellent material.

It is a good course that forced me to understand the s3 and s4 object of R and have gained an appreciation of "methods belonging to functions not belonging to objects".

Awesome interactive Swirl

Un Curso excelente, alta mente recomendado. Agradecido por Coursera y los creadores de esta modalidad de aprendizaje que brinda oportunidades a entusiastas que buscan un crecimiento profesional.

Great curriculum. However, I feel the OOP examples could have been designed from basic - intermediate - advanced levels. Else, it is good to have a separate module on advanced 'OOP' using S3, S4. More examples we work on, better we will get at it.