R programming for beginners - statistic with R (t-test and linear regression) and dplyr and ggplot

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R programming for beginners - This video is an introduction to R programming. I have another channel dedicated to R teaching: / rprogramming101 In this video I provide a tutorial on some statistical analysis (specifically using the t-test and linear regression). I also demonstrate how to use dplyr and ggplot to do data manipulation and data visualisation. Its R programming for beginners really and is filled with graphics, quantitative analysis and some explanations as to how statistics work. If you’re a statistician, into data science or perhaps someone learning bio-stats and thinking about learning to use R for quantitative analysis, then you’ll find this video useful. Importantly, R is free. If you learn R programming you’ll have it for life.
This video was sponsored by the University of Edinburgh. Find out more about their programmes at edin.ac/2pTfis2
This channel focusses on global health and public health - so please consider subscribing if you’re someone wanting to make the world a better place - I’d love to you join this community. I have videos on epidemiology, study design, ethics and many more.

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7 авг 2024

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Комментарии : 1 тыс.

@gregmartin Год назад

Get my FREE cheat sheets for Statistics and Research Methods (including transcripts of these lessons) here: www.learnmore365.com/courses/statistics-research-methods-resource-library

@bigfishartwire4696 6 лет назад

We’re paying thousands to the universities that pay thousands to lecturers, just to learn statistics for free in videos like this. This guy is the best statistics lecturer ever.

@gregmartin 6 лет назад

WOW - what a fantastic comment. Thanks !!

@neelkanthjangde2483 5 лет назад

@gregmartin 5 лет назад

Hi there - thanks for your comment about my R video on RU-vid. I've just launched a channel that focusses just on R teaching. First video was posted this week. Here is the link: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9kYUGMg_14s.html

@zixednatz 5 лет назад

@@gregmartin wow thanks I have just subscribed to your new channel.

@georgemcnaughton8238 5 лет назад

True but I look at it kind of like that douche in Good Will Hunting i'm not really paying to learn, though that is a bonus, i'm paying to have a qualification i can parlay into a good job.

@clairewhite2481 4 года назад

You are an absolute beacon in the darkness that has been my understanding and application of R , and you helped me remember all the stats from my masters a decade ago. In short, I couldn't have done my assignment without you. Love your presenting style and method of demonstration. Thank you for passing on your affinity with R!

@majam1n 6 лет назад

Hi Greg. This video is the reason why I subscribed to your channel. Why? 1) The pacing of the information is just right (it's fast enough that it doesn't 'drone' on and on) ... and the rapid pace only works because ... 2) The zooming in on the where the audience's attention should be is VERY clear. 3) You chunk the different parts of the lesson, which helps to know what is being worked on. 4) You BUILD up on the final product, so the audience can see the incremental changes from beginning to end. 5) You MINI lesson concepts that you suspect the audience may not have complete knowledge of (t Tests, log plots, linear regression) 6) You save the in-depth explanation of certain sub-topics to other videos! Awesome. Focusing only on the lesson at hand. 7) You managed to squeeze an hour-long concept into a 15-minute video. 'Nuff said. 8) You didn't bother the audience with how to install R, R-Studio, etc. Thank you (this is probably just a personal preference). 9) I'm a teacher. This make me want to explain topics that I teach better.

@gregmartin 6 лет назад

Thanks for the lovely feedback Marian - I really appreciate it. I enjoy teaching and am delighted to learn that some of what I create is useful. I'll definitely be creating more content soon (especially after your encouraging comments). :)

@soniaselwin4162 4 года назад

Marian Minar Iam watching after reading your comments

@lokesh6861 3 года назад

@@gregmartin I need help Greg I have exam on regression will you help me please

@nbr2737 2 года назад

Although this isn't new to me, being at the end of my undergrad psych degree, I must say, this is the best introduction to statistics for University students I've ever come across (judged by pragmatism, conciseness, and spirit)

@gregmartin 2 года назад

Thank you for the lovely feedback!

@cleidsonn 3 года назад

This video was the one that "turned the key" in my head and made me understand the logics of R. Really great job.

@scottd1342 11 месяцев назад

Agree, the penny just dropped.

@jackgao8861 6 лет назад

It's the best R tutorial I've ever met. Thanks~

@gregmartin 6 лет назад

Ah - thanks for the very kind comment Jack. I'll create more R videos soon!

@jackgao8861 6 лет назад

Global Health with Greg Martin Looking forward

@pinkchair 4 года назад

Absolutely awesome video! I’ll be coming back to it many times in the near future and I’m so excited to see that you have other videos.. Thank you!

@Zane885 5 лет назад

I have yet to see a better R tutorial. You are the man. The video was straight to the point.

@ga3bi 6 лет назад

This video is amazing, very dynamic and straightforward, exactly what I needed. Hugs from Brazil :D

@gregmartin 6 лет назад

Thanks for the feedback Gabriel - I'm glad you liked the video. I'll definitely be creating more like it in the near future. Happy day. Greg

@chouaibbio7673 7 лет назад

One of the best R tutorials that I ever seen, thank you vary much, I wich that you will bring more.

@gregmartin 7 лет назад

chouaib bio thanks so much. For saying so. Glad you liked it 😀

@mariayolanda6590 5 лет назад

chouaib bio pasaje biblico

@gregmartin 5 лет назад

@timaustin8560 3 года назад

Cjv

@smoothpuddin76 6 лет назад

This is great! Been muddling thru trying to learn R on my own. You make it look so easy. Thank you!

@eriol33 5 лет назад

I swear this is probably one of the best R introduction I ever watched!

@nymphadoralupin7879 4 года назад

Hey, thanks so much for this vid!! I'm currently struggling to do some data analysis on behavioural data for my thesis and this was very useful in helping me filter out some of the variables that I need excluded in another dataset. I just need to figure out how to do that now! 😅

@marketmail49 4 года назад

simply magnificent! thanks a lot for opening my eyes to this wonderful world of R!

@johnrussell5715 3 года назад

Greg I really appreciate your enthusiasm and simple breakdown of R.

@brandonbullough 7 лет назад

Great video, I would love for you to do another one on R. We all have so much data and need to think of ways we can visualize it in a meaningful way.

@gregmartin 7 лет назад

Hi Brandon - thanks for the suggestion. I'll definitely create more R videos. I really enjoy R (I haven't been using it long but am loving it).

@thom8303 7 лет назад

Agreed Brandon. More R videos would be excellent. Perhaps with examples on how to depict data within a more confined population such as patients in 3 hospitals?

@gregmartin 7 лет назад

Thanks for the suggestion Thomas - will do :)

@gregmartin 6 лет назад

Brandon Bullough more videos to come. 😎

@golamkibriamadhurza1214 6 лет назад

We are awaiting...

@kellymahoney7363 4 года назад

you are a wonderful teacher. it would be great if you continued posting videos to your R channel. I'm sorta surprised that you are not posting to this channel during Covid-19.

@bkeyshov 5 лет назад

Your exceptional ability to cover lots of concepts and techniques in shortest possible videos, is highly commendable! Thanks a lot for all the stuff!

@gregmartin 5 лет назад

Thanks for the feedback - much appreciated. I have a new RU-vid channel that focuses on R programming.. ru-vid.com

@janinecox4603 5 лет назад

I really enjoyed your video thanks for introducing me to R very excited to know how to install and use this for population health planning

@Tracks777 7 лет назад

Awesome video,Keep it up!

@gregmartin 7 лет назад

Glad you liked it! Thanks for the comment.

@120perfecthalf 3 года назад

This is really really great but far from being for beginners, when I was a beginner I did not understand probably 80% of what is being said here. You need to have a solid foundation in Stats to get this. Maybe this video acts a motivation for people to learn Stats and R.

@henriqueb8538 2 года назад

I agree. I'm not from the programming field and the amount of time and energy I use learning R sometimes makes me wonder if learning it is worth. Should I be taking my hours of study to improve skills in a more compreensive software? I frequently think about that.

@112233JORDAN 2 года назад

It may not be "beginner" but for the length of this video and the likely audience, it's perfect

@nilse 5 лет назад

Best intro video I could have imagined. So many useful commands and insights in so little time, without being to much.

@gregmartin 5 лет назад

Thanks for the feedback. I'll be creating new content soon (glad you liked it)

@jiangxu3895 4 года назад

You are awsome. Never saw any tutorial so concentrated and straight forward.

@hilalajafarova9684 6 лет назад

I decided to watch all your lessons. Your preference style needs to be chosen as a standard. Сoncretely and just perfect!

@gregmartin 6 лет назад

Hilala Jafarova thanks for the very kind comment.

@sudharouth2196 6 лет назад

Hilala Jafarova single day and night and you can come over here and there are no good morning baby girl is that

@priyankarana2633 6 лет назад

You just developed my interest in R. Thank you for presenting it in such an interesting way. It was amazing!

@gregmartin 6 лет назад

Priyanka Rana glad you liked it. Thanks for the feedback 😀

@handandemir1576 6 лет назад

@ginahuynh5079 3 года назад

This is probably the best video I have ever watched in this topic. Thanks so much!

@DavidDouglasBird 5 лет назад

Great tutorial - covers so much in a small amount of time!

@adrianoldchannel2494 6 лет назад

The best series I've seen so far.

@gregmartin 6 лет назад

Thanks!! that's a very kind comment!! :)

@mariaceoi1demaeepaionceica134 4 года назад

@@gregmartinReginaldo f3

@octe-es 6 лет назад

I think,this is the most clean video to learn R for beginners. Nice job

@gregmartin 6 лет назад

thanks Octe - glad you found it helpful.

@nelsonhayes4 2 года назад

I’m working on an R video and looking for inspiration, and this is one of the best tutorial videos I’ve ever seen. I know it’s a ton of work to make an expertly paced, high production value video like this, and you knocked it out of the park!

@gregmartin 2 года назад

Wow, thanks!

@lprayaga1 2 года назад

This is awesome, just what I needed. Thank you so much for posting this video with the jazzy effects too!

@gregmartin 2 года назад

Glad you enjoyed it! Thanks!

@beautydeegan5819 6 лет назад

You are an amazing teacher

@gregmartin 6 лет назад

Beauty Deegan thanks very much. That's a very kind comment. 😀

@abcd-ek1rt 6 лет назад

Hi, Wonderful video, thank you. A small correction @6:32 , install.packages("dyplr").. It's "dplyr" .

@gregmartin 6 лет назад

thanks for pointing that out (blush) :)

@sudiptomajumdar4210 6 лет назад

I was frustrated and stopped following due to all the error because i typed "dyplr". Its my second day in R. Thanks for the video. Learning at youtube from scratch

@yannickferket1479 6 лет назад

Ran into the same issue, and only found the answer by scrolling through the comment section. RU-vid tip: you can insert annotations so you don't have to redo your recording. Great tutorial

@gregmartin 5 лет назад

@Cookiena 9 дней назад

Ah thank you so much! I was frusttrated too! So its: install.packages("dplyr") library(dplyr)

@bijhua 4 года назад

Just started to learn R. Your videos are brilliant. You’ve earned yourself a subscriber :)

@madihahmanggabarani4638 5 лет назад

This video is really awesome, now I can use R because of this video, great job @Greg Martin!!!!

@TerezaS 4 года назад

Thank you for such a great tutorial! :) Would you be so kind and recommed me a source on how to perform latent aspect rating analysis using R? Thank you in advance!

@Aquila556 4 года назад

University TAs are talking nonsense for hours and hours. This guy just taught me how to use R in 16 min.

@alsteiner7602 4 года назад

Preach

@kahlschlag17 5 лет назад

Brief, to the point, spot on, engaging, fast! If I had teachers like that I would not have dropped out of school.

@gregmartin 5 лет назад

Thanks Christian - i really appreciate the feedback. Glad you found the video useful! I have a new channel that focuses just on R programming - check it out ru-vid.com

@myersanthonya 6 лет назад

An AWESOME video. Wow, you managed to incorporate Stats and R programming basics in a minimal time span. Love it. Thank you.

@gregmartin 6 лет назад

Thanks for the feedback Anthony! :) much appreciated.

@pablosuarez713 5 лет назад

after i impu data("gapminder"), this warning jumps telling me that data set gapminder does not exist. any clue why this happens?

@santiagocabas4662 4 года назад

Only put gapminder, without quotes

@iankigotho2617 3 года назад

Install dpylr

@sagarlama6332 4 года назад

2:10 Where do we find gapminder?

@aegystierone8505 4 года назад

Thank you, your explanations and the examples you provided is very clear and covers a lot for my understanding of ggplot.

@kellyvlug4239 3 года назад

This video really helped me!! Please keep them coming, you are really helping me with my stats course

@iand25 6 лет назад

I was having trouble getting started but found my error. Please explain that to execute a command you must hit Ctrl+Enter and not just Enter. Everything worked great after that. Thanks for the great video!

@gregmartin 6 лет назад

Great point Ian!! :)

@ChrisB-rq3ju 5 лет назад

thanks

@anabelacantiani4214 4 года назад

Thanksssss!

@rickiallardice7219 4 года назад

THANK YOU! 30 minutes if pulling my hair out until I found this comment

@hanialbeiruti9528 4 года назад

Warning in install.packages : package ‘dyplr’ is not available (for R version 3.6.3)

@hanialbeiruti9528 4 года назад

install.packages('dplyr', repos = 'cloud.r-project.org')

@marijabukarac8128 5 лет назад

Thank you very much. Great video and perfect style. Easy to understand.

@gregmartin 5 лет назад

Glad you liked it🎉 more to come. Thanks for the comment. Happy day. Greg

@lillycollins1759 5 лет назад

Thank you very much Greg!! I love your tutorial and decide to watch all the others as well!!

@gregmartin 5 лет назад

Thanks you for the feedback. I've also started a new RU-vid channel that focuses just on R programming. Here is the link: ru-vid.com

@jons2cool1 5 лет назад

At 12:39 I keep getting the error, Error in gapminder %>% filter(gdpPercap < 50000) %>% ggplot(aes(x = gdpPercap, : could not find function "%>%".

@gregmartin 5 лет назад

you might need to install the DPLYR package first

@Chaudhary_lavanya9 4 года назад

Same problem even after installing dplyr

@hemakumargantepallidataandai 6 лет назад

Please do more in DataScience!!!

@gregmartin 6 лет назад

Hi Hemakumar - thanks for the message. Will do :)

@chuchugeleta9650 4 года назад

Thank you for you give this course free which I did not get when I was attending in university class. I motivated and feel confidence to do and continue a research in one of health problems.

@jagan_mohan 6 лет назад

Straight to point, fast and full of information. Love the way you teach.

@gregmartin 6 лет назад

Thanks Jagan. More to come soon I promise. Glad you liked it. Thanks for the feedback.

@RProgramming101 5 лет назад

Very useful video

@ronaldbetty8338 4 года назад

Ps upload more videos

@nms1615 4 года назад

Wow

@valdemarolezza8469 3 года назад

Ok grazie or mi

@Nick-pc6vl 3 года назад

Bennaniyass123@gmail.com

@lokesh6861 3 года назад

I need help I have a assignment on regression

@ithinkradioheadisgood 5 лет назад

I'm here from accidentally typing up "r" on google... This ain't Roblox-

@moonwu1076 5 лет назад

lol yes

@n1colesfilms997 3 года назад

same

@bhaktiisk 3 года назад

omg lol same

@princesangeluniyal 6 лет назад

Awesome powerpacked video! and there is no useless rant in between. Thanks for sharing!

@gregmartin 6 лет назад

Thanks for the feedback Aman - much appreciated. Will try to create more in the near future!

@zoehammis60 6 лет назад

Love this video! I wish you had more video's on R, it's a great teaching style and easy to follow

@gregmartin 6 лет назад

More to come Zoe (I promise). Thanks for the feedback.

@emekaikegwuonu1715 6 лет назад

I downloaded R 3.4.2 and R studio, but I cannot download the gapminder data. It displays a warning message with data set 'gapminder' not found.

@gregmartin 6 лет назад

Thanks for letting me know. Let me see what I can find out.

@mikewu6801 6 лет назад

Same here. I really enjoy watching your videos throughout grad school and now I'm working for the CDC :) Keep up the great work! This is the error I received. The downloaded binary packages are in /var/folders/w3/k3bxngks2cd34gh6msjz_t3h0000gn/T//RtmpIQQO9Q/downloaded_packages > Warning in install.packages : package ‘/var/folders/w3/k3bxngks2cd34gh6msjz_t3h0000gn/T//RtmpIQQO9Q/downloaded_packages ’ is not available (for R version 3.4.2)

@krystianmacheta2667 5 лет назад

I have similar problem. I downloaded the package "gapminder" (1.9MB) but after it, I cannot open it on the global environment.

@antonyadshead91 5 лет назад

Good stuff. But tedious sound effects

@gregmartin 5 лет назад

Thanks for the feedback Anthony. Will use fewer sound effects in future. :)

@retrowatermelon 5 лет назад

@@gregmartin Don't you dare! The sound effects are wonderful.

@happy7akira 3 года назад

can I just say that the audio effects were spot-on hilarious :) love the funny details that spice the learning process!

@amylock8275 3 года назад

That was awesome! Thank you. I can't wait to study R tomorrow after watching that.

@mhmedabd-elnaby5167 5 лет назад

thanks for the video but the sound of applause and cheering at the end of the video scared me

@UPPERKEES 6 лет назад

Finally someone without an Indian accent... Thanks!

@gregmartin 6 лет назад

Haha - well it won't be long before you're sick my of South African accent :)

@andreaszmavridisz3592 6 лет назад

is it south africanm i thought its Cockney :D. it very chilling btw:D

@chreif 6 лет назад

whats the problem w indian accent..you chinese?

@t_DaKaDa 5 лет назад

Say that again hey

@ravikrishnarpan 5 лет назад

Chinese problem

@leontang9812 3 года назад

Excellent! A big thank you for helping me start my R journey!

@TheLeojane 5 лет назад

This is my very first comment ever for a RU-vid video, and I would like to give the full credit to you simply because you gave the best lecture of R programming for the beginners. I am amazed how you managed to make it simple, understandable as well as intriguing, which made me want to learn more. And yes, I immediately subscribed:) 👍

@gregmartin 5 лет назад

Thanks for the lovely comment Jing. I really appreciate the feedback. I'm glad that you enjoyed the video and I will definitely make more of them in the future. Greg

@jonathanstudentkit 7 лет назад

the statistical part is a bit unprecise and incorrec in a general contextt!!!

@gregmartin 7 лет назад

Jonathan thanks for the feedback. I'm sure you are right I'm really a beginner with R and am not a statistician (hopefully my demonstration wasn't too far off though) 👀

@jonathanstudentkit 7 лет назад

Global Health with Greg Martin no, it was a good video, but in general one has to be careful about what is formally correct

@gregmartin 7 лет назад

Yes- I agree👍🏻

@melkonya Год назад

This is one of the most usefull R statistics video I have ever seen on RU-vid. Thank you pal !

@gregmartin Год назад

Wow, thanks!

@mrigankasinha 3 года назад

Wow so much explanation in such a short video... Thanks a ton 👍👍👍👍

@yunlee1425 5 лет назад

This is amazing. I really learn a lot from this video about R and how it works. Thank you.

@gregmartin 5 лет назад

You are most welcome Yun

@olenaberchuk8975 Год назад

Fantastic video! You've turned me into an R convert over from Stata!

@gregmartin Год назад

Thanks for the feedback and I'm sure You'll love R!

@stephane1623 7 лет назад

This video reinforced the materials I have learned in my program, but I will definitely explore R more. It is a great statistical skill to have.

@gregmartin 7 лет назад

Glad to hear it Stephane. I'll post some more R videos in the future. Happy day. Greg

@jorgeromero141 3 года назад

A great and particular insight into the immense word of the statistics and of course these fantastic cutting edge tool called R.

@BDEvans 2 года назад

This is a great video. Brilliant introduction to stats and R

@GuitarLarson 6 лет назад

Great video!!! Best R tutorial Ive seen! Keep up the good work!

@gregmartin 6 лет назад

I'm really glad you liked it Johannes!! Thanks for the feedback!

@BehindSeas 3 года назад

thank you. awesome information and awesome video editing

@kelechiigwe3353 2 года назад

Really awesome presentation!!!. I had always seen plots made with the "dplyr" package but finally learnt how to produce it today. Thank you so much!

@gregmartin 2 года назад

Glad you liked it - thanks!

@kganetsomaphane5550 5 лет назад

I recently embarked on R and finding your first lesson extremely helpful. Surely will be following you for other lessons.

@gregmartin 5 лет назад

Thanks Kganesto

@drsamruddhiyerunkar9847 6 лет назад

Amazing explanation and the graphics are to the point. Gosh I am super impressed!!

@gregmartin 6 лет назад

Glad you liked it Samruddhi. :)

@saarpaamoni5457 4 года назад

excellent video finally someone bringing it at the right pace

@bimpeeko4094 11 месяцев назад

Your videos are so helpful! Thank you.

@emilioroman4967 4 года назад

Great video! Following the Rchannel allready. Thx!

@camhaw 7 лет назад

Great video! Thank you so much for this! I'll share it with colleagues who are intimidated by R but want to learn :)

@gregmartin 7 лет назад

Thanks very much - I appreciate you sharing it! Happy day, Greg

@asphotawasti7005 6 лет назад

Amazing video, can't wait to see your new videos!

@gregmartin 6 лет назад

Glad you liked it - I'm definitely going to be creating more R videos!! Thanks for the feedback!

@neflig 3 года назад

thanks for this very informative and easy to understand video!

@terrylschmidtdrha7186 7 лет назад

Dr Martin does it again. Thank you University of Edinburgh for making it possible. For my graduate students - this is Wonderful to introduce R programming. Important skill development for research data studies. Thanks, Greg.

@gregmartin 7 лет назад

Terry you are too kind. Thanks for the comment though and I hope that your grad students find this helpful.

@satheeshdamodar7328 5 лет назад

Really a good video on R programming. Thanks Greg

@gregmartin 5 лет назад

You are most welcome Satheesh!! Glad you liked it!

@robertbutscher6824 4 года назад

Many thanks for the very good explanations. R is fantastic and you explained it super. Thanks for everything. Stay strong. Greetings from Germany Robert

@prathibhavattikuti 5 лет назад

This is called a perfect video, Thank you Greg.

@gregmartin 5 лет назад

Thanks. What a lovely complement. Much appreciated. 👍🏻

@imvijay1166 3 года назад

Insane!. You saved me, now I can do well in today’s semester end exam

@martinav6311 3 года назад

thanks a lot for your efforts and such a great video.

@tarkanh2519 3 года назад

Excellent video which reminded me alot of statistical concepts. Thanks alot Greg

@gregmartin 3 года назад

Glad it was helpful!

@rexvm 4 года назад

this is actually really good compared to the other videos on youtube

@mugerwahamudane7449 5 лет назад

You’re the best. You really did an impeccable work. Thank you very much.🙏

@gregmartin 5 лет назад

You are most welcome. Glad you liked it.

@raymondnepomuceno8815 3 месяца назад

Nice !! Many thanks and more power

@davetemane696 4 года назад

this video is very clear and useful. you are the best

@loveroflife2157 6 лет назад

amazing video. i learned a lot fromthis short video. thank you at minute 14: gapminder %>% filter(gdpPercap < 50000) %>% ggplot(aes(x=log(gdpPercap),y=lifeExp)) + geom_point(alpha=0.3, aes(color=year, size=pop)) + geom_smooth(method=lm) + facet_wrap(~continent)

@gregmartin 6 лет назад

Lover Of Life you are most welcome!