R语言logistic, lda及knn三种模型的预测比较

题目

Recall that Tinder also uses a preference learning algorithm that predicts the outcome of matching a user with a potential match. Let’s assume that users create their profiles and answer questions regarding whether they like sports, outdoor activities, and pets. The answers are reported in their public profiles and coded as the attributes C1, C2, and C3. When looking for matches, users see the picture of potential matches and learn about the three attributes, they then click or not on a “like” button (or swipe left or right). Let’s defin