title: Sklearn: KNeighborsRegressor vs KNeighborsClassifer
body: <p>What is the difference between the KNeighborsRegressor and the KNeighborsClassifier of the sklearn library? </p>
  
  <p>I'm trying to use the kNN algorithm to make predictions on a datset that has the names of certain emotions (like happy, sad, angry) as possible classes. The attributes are numerical pixel values. I've learned that these are of the categorical type. I'm using sklearn for the first time and can't decide between the KneighborsRegressor and the KNeighborsClassifier. Is there that much of a difference in my case? In which situations would one use these?</p>