sk4_learning_pattern.py

# View more python learning tutorial on my Youtube and Youku channel!!!

# Youtube video tutorial: https://www.youtube.com/channel/UCdyjiB5H8Pu7aDTNVXTTpcg
# Youku video tutorial: http://i.youku.com/pythontutorial

from sklearn import datasets
from sklearn.cross_validation import train_test_split
from sklearn.neighbors import KNeighborsClassifier

iris = datasets.load_iris()
iris_X = iris.data
iris_y = iris.target

##print(iris_X[:2, :])
##print(iris_y)

X_train, X_test, y_train, y_test = train_test_split(
    iris_X, iris_y, test_size=0.3)

##print(y_train)

knn = KNeighborsClassifier()
knn.fit(X_train, y_train)
print(knn.predict(X_test))
print(y_test)