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Learner Reviews & Feedback for R Programming by Johns Hopkins University

4.5
stars
22,171 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

EJ

Jul 11, 2016

Excellent course! I already knew a lot about R - but this class helped me solidify what I already knew, taught me lots of new tricks, and now I have a certificate that says I know `something' about R!

MR

May 11, 2020

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.

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3826 - 3850 of 4,720 Reviews for R Programming

By Sharol T

•

Nov 15, 2021

good

By Nimit N

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Sep 9, 2017

Great

By Stefan v R

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Nov 13, 2016

super

By Pullela H C

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Mar 26, 2023

good

By Harshit T

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Nov 7, 2020

nice

By PREM K N

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Oct 23, 2020

good

By Vedang D

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Aug 16, 2020

Good

By Sushmit

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Jul 12, 2020

Good

By Melissa G

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Apr 29, 2019

Good

By Santi M

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Mar 8, 2019

nice

By shankar

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Feb 3, 2019

Good

By avijit r k

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Apr 2, 2018

good

By Shantanu

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Nov 20, 2017

NICE

By Kiran K P

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Feb 1, 2016

Good

By Baji r

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Apr 6, 2023

nyc

By Prakash S

•

Jul 6, 2020

Ok

By Dia

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Mar 31, 2021

.

By Lev S

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May 13, 2020

I

By ritesh k

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Aug 24, 2019

h

By Pranab M

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Feb 7, 2018

C

By Victoria L

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Dec 28, 2017

.

By sugyoo

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Oct 22, 2016

V

By SungwookChoi

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Aug 14, 2016

g

By Brandon J

•

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.

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...