Logistic Regression in R, Clearly Explained!!!!

This video describes how to do Logistic Regression in R, step-by-step. We start by importing a dataset and cleaning it up, then we perform logistic regression on a very simple model, followed by a fancy model. Lastly we draw a graph of the predicted probabilities that came from the Logistic Regression.

The code that I use in this video can be found on the StatQuest GitHub:

For more details on what's going on, check out the following StatQuests:

For a general overview of Logistic Regression:

The odds and log(odds), clearly explained:

The odds ratio and log(odds ratio), clearly explained:

Logistic Regression, Details Part 1, Coefficients:

Logistic Regression, Details Part 2, Fitting a line with Maximum Likelihood:

Logistic Regression Details Part 3, R-squared and its p-value:

Saturated Models and Deviance Statistics, Clearly Explained:

Deviance Residuals, Clearly Explained:

For a complete index of all the StatQuest videos, check out:

If you'd like to support StatQuest, please consider...

Buying The StatQuest Illustrated Guide to Machine Learning!!!

...or...

...a cool StatQuest t-shirt or sweatshirt:

...buying one or two of my songs (or go large and get a whole album!)

...or just donating to StatQuest!

Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter:

0:00 Awesome song and introduction
0:29 Load and format data
3:54 Dealing with missing data
5:03 Verifying that the data is not imbalanced
6:44 Logistic regression with one independent variable
12:48 Logistic regression with many independent variables
15:13 Graphing the predicted probabilities

#statquest #logistic

[wei]

Thank you so much Josh for all these videos! I got Aplus for most of my stat courses quite a few years ago when I was doing my MSc of BIostat, but it took me quite some time to come up with a better understanding of a few concepts. You just summarized and presented these ideas and more in a few minutes! You are a genius and on top of that, you are so Kind to share all these work to everyone for free! With my limited vocabulary, all I can say is THANK YOU! It makes me feel the world is a beautiful place with beautiful mind and soul. I love your song “hello”, it reminds me of the day I met my daughter and brought happy tears to my eyes :)

[ithelastmoa]

Your videos cover everything in my course and I wish I found you sooner! So much detail and clear explaining in such little time

[MuctaruKabba]

Your videos never disappoint, Sir. I have gone through many of them and think you've earned the right to brand the phrase: "clearly explained" because your explanations are indeed very clear. I am building a better explanation of statistics thanks to you. I appreciate you and hope you continue to pass on the knowledge.

[holeman]

This 89-year-old guy says BAM!! So clearly explained, indeed. DOUBLE-BAM!!!!

[SurrenderPink]

Josh, it’s Saturday morning here and I’m enjoying a cup of Bam! learning R from the best teacher on the planet. I’m so grateful and appreciative of your efforts to share your considerable talents with us!

[chasti]

I just wish one day all this information actually stays and sticks to my mind... thank you thought! Your videos are amazing!

[emilyblythe]

where have you been my whole thesis! thank you!!

[solalstenou]

What is great with your video is that even if I forgot my headphone I am able to follow the video in the computer room full of other students! Thank you so so so much !!!! From University of Bordeaux

[japhethernandezvaquero]

Nice channel to land on! Happiest discovery of my 2020! Great job!

[marielledelcarmencaballero]

Your videos are great! It's also so nice of you that you take the time reply to so many of the comments here !

[alhaque]

Thank you so much! I've a stat project to do in R with logistic Regression and this simplified the coding portion so much!

[yashilagovender]

Thank you so much for this video! I've been suffering with the coding for my project but this really helped. You're a star!

[alexandergeorgiev]

You are an absolute life saver. My data science paper is due in two days and now I have my pretty log graph and I understand this better. DOUBLE

[-FENRIR]

I really enjoyed the clearly way to explain us this topic. So many thanks for the teaching!!!

[meniz]

You will surely be in my Thesis acknowledgments. Thank you for making our lives relatively easier but truly more ineligible.

[farhadwaseel]

I recommend all the videos by stat quest with Josh Starmer. Thank you for your good explanations.

[burrohq]

You sir deserve a promotion 👏 thanks for this incredibly helpful video

[chrischukwu]

You are an amazing teacher. God bless you!

[dodgecarlincila]

I was just here for the logistic regression but bam!! I would be watching all of your videos. As a ds learner using r, double bam!!!, your videos will surely help big time! Bambambam! 👌😅
Thank you. 🙂

[zahraab]

"one last shameless self promotion" got me why I love your videos, u make learning stats fun