Hi, thank you very much for the course 
I have a question, is there any method to check the most accurate number of n_neighbors for our data? Of course looking from the perspective of accuracy score.
Hello @romi9987, in Module 3 you will learn how to use tools such as the sklearn.model_selection.GridSearchCV to find the optimal hyperparameters of a model. In particular you can tune the n_neighbors hyperparameter to maximize the score.
Great, thank you very much