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    Back to R Programming

    Learner Reviews & Feedback for R Programming by Johns Hopkins University

    Filled StarFilled StarFilled StarFilled StarHalf Faded Star
    4.5
    stars
    22,311 ratings

    About the Course

    In this course you will learn how to program in R and how to use R for effective data analysis. You will learn how to install and configure
    software necessary for a statistical programming environment and describe generic programming language concepts as they are implemented
    in a high-level statistical language. The course covers practical issues in statistical computing which includes programming in R, reading data
    into R, accessing R packages, writing R functions, debugging, profiling R code, and organizing and commenting R code. Topics in statistical data
    analysis will provide working examples.
    ...

    Top reviews

    MR

    May 12, 2020

    Filled StarFilled StarFilled StarFilled StarFilled Star

    Really interesting course. The interactive coding sessions with swirl are especially useful. Would be great, if you provided sample solutions for the programming assignments, in particular for week 4.

    HH

    May 12, 2020

    Filled StarFilled StarFilled StarFilled StarFilled Star

    before starting this course i have experience of R programming but this course gives me a lot of new function and how to build a function and a most useful function str,debugging and Rprof.Thank You!

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    3851 - 3875 of 4,745 Reviews for R Programming

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    By Stefan v R

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    Nov 13, 2016

    super

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    Apr 29, 2025

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    good

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    Nov 20, 2017

    NICE

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    Feb 1, 2016

    Good

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    Apr 6, 2023

    nyc

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    Jul 6, 2020

    Ok

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    By Brandon J

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    May 30, 2022

    I'm not going to finish this course due to a number of reasons, some of them being my personal gripes, some being very fatal flaws in the course itself. The first gripe is that there is an obvious lack of any kind of script during the video instruction. I can't tell you how many times I was distracted by the professor just simply not being able to speak a clear sentence without stuttering at least twice and saying "um" or "uh" no less than 10 times at points during single sentences. I am obviously not sure if he has a stuttering problem, which is why I tried my hardest to just deal with it, however, after realizing that what he's saying in the videos isn't matching what's being lined out in the written lesson I knew that it didn't matter if he stuttered or not, he's just simply not teaching the same things that are being asked on the quiz. I don't know where this reading is supposed to be. I went all out and bought the associated book, and it's literally an enterely different lesson arc than what the videos line out. In the documentation? That's where I'm pointed to most of the time but I hate to tell you that if someone could learn how R syntax worked just from the documentation there wouldn't be courses for it. So, the course goes from a shaky understanding of what 1/4 of the base functions are in R, to writing your own functions and expecting you to understand and remember the syntax for all those other functions you just learned or didn't in some cases, you just have to look up how that works and make it happen. There is no guidance other than, here's half the answer, good luck with the rest. The other part of the course that I just absolutely can't stand is the exercise model SWIRL they came up with to test code. At least three times I had the correct answer, but the spaces weren't the same so it didn't register as correct, and I spent over an hour on three questions trying to understand why I was wrong when I wasn't. That, right there, is the biggest reason I'm not going to even attempt to complete this course and am moving on to something else that will hold my hand a little more with the syntax that I'm just now learning, rather than expect me to understand it after just a week. I hope that anyone else attempting this course has a better time with it. The professor is obviously knowledgable with the language, I'm just not sure if he's a good relay for that information, at least for me he wasn't.

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    By Roberto S B C

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    Aug 13, 2017

    The best part of the course is the swrl exercise. I really don't like the other aspects: 1) the video format of the classes, where 1a) the speaker improvisizes and then continuously corrects what he says, making it very difficult to understand the new concepts. 1b) Also, one potential advantage of the video format could be to observe things while are done on the screen... on the contrary, we generally can see only slides where everything has been already typed (making very hard to understand at what part of the script the speaker is referring to each time... maybe using a pointer would be better, so that he can direct our attention at the parts of the scripts he is commenting...1c) Also, the very few times we are showed a real screen, the quality of the video is so poor that it is impossible to understand anything. 2) the material offered are very poor. After watching these poor quality video, a text reference would be incredibly necessary. On the contrary, we are almost always only given a transcript of the video, which means that we have no clean text we can refer to. I really don't like the lack of formality of this course. 3) Additionally, the slides that we watch on the video, most of the times are not downloadable. 4) And never ever the script showed in the video are made available, 5) having the exercise reviewed only by peers is conflictive, people will tend to give the highest mark just to be friendly or out of fear in case a revengeful student will give a low mark in the next assignment just because we marked their assignment honestly...

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