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学生对 约翰霍普金斯大学 提供的 The R Programming Environment 的评价和反馈

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295 条评论


This course provides a rigorous introduction to the R programming language, with a particular focus on using R for software development in a data science setting. Whether you are part of a data science team or working individually within a community of developers, this course will give you the knowledge of R needed to make useful contributions in those settings. As the first course in the Specialization, the course provides the essential foundation of R needed for the following courses. We cover basic R concepts and language fundamentals, key concepts like tidy data and related "tidyverse" tools, processing and manipulation of complex and large datasets, handling textual data, and basic data science tasks. Upon completing this course, learners will have fluency at the R console and will be able to create tidy datasets from a wide range of possible data sources....


Dec 25, 2018

Very Very Rigorous Course for a beginner on R language and because of its nature, after completing just one course, I feel like I have gained a lot of knowledge and also familiarity with R language.

Jun 17, 2019

A very good course to read and get the valuable content of R language. This is for the students who want to learn and practice the basic and some intermediate concepts of data manipulation.


151 - The R Programming Environment 的 175 个评论(共 288 个)

创建者 David O O

Oct 20, 2020

Very good.

创建者 Francisco A M

Feb 22, 2018


创建者 Rodrigo G G

Mar 6, 2017


创建者 Dante O

Sep 23, 2020

Muy bueno

创建者 Marcelo B

Aug 4, 2017

Very Good

创建者 Rebecca A D

Sep 24, 2017

good one

创建者 Donatas G

Aug 17, 2020


创建者 Ganapathi N K

May 13, 2018


创建者 Ben S

May 14, 2019


创建者 Dmitry S

Oct 1, 2016

+: I reached my goal for the course and now I understand a bit about R. I succeeded to pass within much shorter time than anticipated course duration. The course certificate is posted to my Linkedin profile.

-: No human mentors on the course discussion forum - all questions answered by other students. Automatic tests in swirl are too restrictive and do not accept perfectly correct student solutions slightly different to those anticipated by the authors. Week 2 assignment is much different from the reading material. Nothing taught about charting in R.

Overall comment: I think it is good value for money.

创建者 wally

Jan 25, 2017

All in all good stuff. A couple of comments:

Swirl grading should be a little more flexible; sure cut is more succinct that nested ifelse's, but there's more than one way to skin the data-analytic cat in R, as I'm sure y'all are aware.

Also, I recommend more emphasis on data tables. I use them exclusively due to the dramatic performance improvement over data frames. And in my brief experiments, dplyr and tidyr commands worked on them too.

This first course was review for me. Nonetheless I definitely learned a few practical things that will up my data science game (which can always use upping).

创建者 Bryan D

Jan 14, 2018

There are a few areas of the course that are not fully explained and cause extra time trying to 'figure it out'. I am not referring to code/learning, but the logistics of the class. However, there are a few questions in assignments & quizzes that refer to things that were not particularly explained either in the lecture or in the book. I understand self study is beneficial, but I start the course with the understanding that questions will be based off of lecture or the book. If additional resources are needed, then that should be expressly stated in the lecture or book.

创建者 Taz P

Jan 23, 2019

This course has a perfect combination of theory and hands-on exercises. I've been doing a few courses in Data Science on Coursera and I have found this method the best at least for me personally. I will probably carry on doing these courses. On the negative side, the student forum is practically dead, don't count on getting any help there. Coursera support have been very difficult and I had to wait a while to get my certificate. In the meantime Coursera charged me for an extra month (after I'd completed the course).

创建者 Kevin D

Jul 10, 2017

Une initiation intéressante et complète à R qui a l'avantage de donner des bons réflexes pour coder rapidement. Le caractère interactif des exercices de programmation est un gros plus. Attention : il n'y a pas de vidéos hormis la vidéo d'introduction. On peut aussi avoir des difficultés de syntaxe susceptibles de nous bloquer un bout de temps, notamment sur des fonctions où la documentation est un peu aride (je pense à cut et à spread sur lesquelles j'ai bien passé 1/4 du temps que j'ai consacré au total à ce MOOC).

创建者 Rafael d S P

Jun 3, 2020

The course is good, it concisely teaches the basics of R and it is based on chapter 1 of the book Mastering Software Development in R, so there are almost no videos, just readings. I recommend it if you have little experience with R and want a quick upgrade. However, there are some errors and typos in the material, including the final quiz. Besides, forums are mostly supported by students, the answers from mentors were from some years ago, and I have seen people with difficulties to contact the support.

创建者 Francisco D I T

Sep 30, 2019

I found this course quite interesting because sometimes we learn about modeling techniques, but we forget one of the most important things: how to write a good script by applying useful packages or functions to read and manage datasets. It has been an easy course and I recommend it to people who want to start basic reading and managing data with R-project. In addition, the possibility of deciding your own work schedule is very helpful when you have to do other stuff from the university.

创建者 Jhosse P M R

Feb 4, 2017

Excelent course to start with the basics of R language. It gives a modern introduction to R programming avoiding traditional topics like loops and conditionals keeping them for more advanced programming topics. It also covers almost all tidyverse packages with a shallow introduction to the most common packages.

I have acomplaint. The dataset for the final quiz was outdated, I managed to pass the quiz guessing variable names.

创建者 Patrick R

Dec 9, 2018

The course book is good and a nice resource. Swirl lessons were also really nice. They are interactive and helped becoming familiar with the functions. However, video tutorials on real datasets like the one from week 4 would be helpful. Also, the final quiz was disproportionally difficult in comparison to what was taught during the weeks leading up to week 4. Overall a good course that provides a solid introduction to R.

创建者 Aubrey L

Jan 16, 2020

Some frustrating issues with Swirl functionality, but the discussion boards are helpful for troubleshooting fixes. Seems to cover the majority of the basics I previously learned in the R section of an in-person, for-credit Quantitative Methods of Management course I took at my college, plus it included a few additional useful topics. I appreciate that it provides links for additional learning. All around solid course.

创建者 Fernando J N

Jan 9, 2018

Very informative, however could be more complete. Some functions aren't introduced and the swirl package didn't accept other solutions path that would likewise lead to the same result. I believe also that some update would not harm. However, this course is really informative and, in my opinion, one of the best available. I really enjoy this course. Nice job and thank you very for sharing this knowledge.

创建者 Robert S

Jul 23, 2020

The swirl assignments are fairly good but not that engaging. If you don't mind doing only readings and swirl assignments, this is a good course to take. If you really want video lectures, you'll want to look elsewhere (there are essentially none). The final assignment was pretty good for making you look things on your own in order to get the solutions, while also not being unreasonably difficult.

创建者 Goldie T P

Dec 12, 2017

You are very much on your own as far as figuring out methods and steps. Expect to use the forums a lot. The professor does a great job explaining but there's a gap between the lecture and the assignment. I compare it to not knowing what a circle is and then being asked to draw one just based on someone's explanation. You'd get better results if you were at least shown a curved line.

创建者 Nicole V

Feb 26, 2018

I really liked the format of the Quiz for Week 4 - there is a dataset given and questions requiring you to do your own data manipulation/calculation to come to an answer (as opposed to the other weeks requiring swirl lessons, which weren't as fun/challenging). I would've liked to see more of the Week 4 type quizzes earlier. Overall, though, this is a good foundation course.

创建者 Nashit A

Jul 20, 2017

Swirl should be accepting of other answers as well as different snippets of code will produce the same result.

At times this got frustrating and my reason of taking time to complete the course is because I'd leave things in between because of swirl issues.

This goes away and it is a 5-star as a beginner course; it is made beautifully to get us up to speed

创建者 Alen D

Sep 2, 2019

This course is very informative and practical special the last assignment because I saw the real data and use of some of packages and functions which I only read them so far and I didn't know how to use them. I didn't give five stars only because problem which I have with swirl during the course:)