Machine Learning - ROC and AUC in R

This tutorial walks you through, step-by-step, how to draw ROC curves and calculate AUC in R. We start with basic ROC graph, learn how to extract thresholds for decision making, calculate AUC and partial AUC and how to layer multiple ROC curves on the same graph. You can get a copy of the code from the StatQuest GitHub, here: https://github.com/StatQuest/roc_and_auc_demo/blob/master/roc_and_auc_demo.R NOTE: This StatQuest builds on the example in the original ROC and AUC StatQuest: https://youtu.be/xugjARegisk Also, if you're curious, here are some links to StatQuests about... ...Logistic Regression https://youtu.be/yIYKR4sgzI8 ...and Random Forests... https://youtu.be/J4Wdy0Wc_xQ For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider... Patreon: https://www.patreon.com/statquest ...or... YouTube Membership: https://www.youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join ...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store... https://statquest.org/statquest-store/ ...or just donating to StatQuest! https://www.paypal.me/statquest Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter: https://twitter.com/joshuastarmer #statquest #ROC #AUC