StatQuest: K-nearest neighbors, Clearly Explained

Machine learning and Data Mining sure sound like complicated things, but that isn't always the case. Here we talk about the surprisingly simple and surprisingly effective K-nearest neighbors algorithm. 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 0:00 Awesome song and introduction 0:21 K-NN overview 0:44 K-NN applied to scatterplot data 2:44 K-NN applied to a heatmap 4:12 Thoughts on how to pick 'K' #statquest #KNN #ML