sklearn python API
- LinearRegression
from sklearn.linear_model import LinearRegression # 线性回归 #
module = LinearRegression()
module.fit(x, y)
module.score(x, y)
module.predict(test)
- LogisticRegression
from sklearn.linear_model import LogisticRegression # 逻辑回归 #
module = LogisticRegression()
module.fit(x, y)
module.score(x, y)
module.predict(test)
- KNN
from sklearn.neighbors import KNeighborsClassifier #K近邻#
from sklearn.neighbors import www.tianjiuyule178.com KNeighborsRegressor module = KNeighborsClassifier(www.tygj178.com n_neighbors=6) module.fit(x, y) predicted = module.predict(test) predicted = module.predict_proba(test)
- SVM
from sklearn import svm #支持向量机#
module = svm.SVC()
module.fit(x, y)
module.score(x, y)
module.predict(test)
module.predict_proba(test)
- naive_bayes
from sklearn.naive_bayes import GaussianNB #朴素贝叶斯分类器#
module = GaussianNB(www.dashuju178.com)
module.fit(x, y)
predicted = module.predict(test)
- DecisionTree
from sklearn import tree #决策树分类器#
module = tree.DecisionTreeClassifier(criterion='gini')
module.fit(x, y)
module.score(x, y)
module.predict(test)
- K-Means
from sklearn.cluster import KMeans #kmeans聚类#
module = KMeans(n_clusters=3, random_state=0) module.fit(x, y) module.predict(test)
- RandomForest
from sklearn.ensemble import RandomForestClassifier #随机森林#
from sklearn.ensemble import RandomForestRegressor module = RandomForestClassifier() module.fit(x, y) module.predict(test)
- GBDT
from sklearn.ensemble import GradientBoostingClassifier www.hyptdl.com #Gradient Boosting 和 AdaBoost算法#
from sklearn.ensemble import www.fengshen157.com GradientBoostingRegressor module = GradientBoostingClassifier(n_estimators=100, www.yundingyuLe.cn learning_rate=0.1, max_depth=1, random_state=0) module.fit(x, y) module.predict(test)
- PCA
from sklearn.decomposition import PCA #PCA特征降维#
train_reduced = PCA.fit_transform(train)
test_reduced = PCA.transform(test)