机器学习-sklearn库

sklearn库导包

from sklearn.datasets import load_breast_cancer,load_iris,load_boston,make_gaussian_quantiles
                              # 乳腺癌数据集       鸢尾花     波士顿房价        高斯分布
from sklearn.preprocessing import PolynomialFeatures,StandardScaler,MinMaxScaler,OneHotEncoder,LabelEncoder
                                    # 多项式特征        数据标准化      归一化       独热编码       标签编码
from sklearn.feature_extraction.text import CountVectorizer,TfidfVectorizer,TfidfTransformer
from sklearn.decomposition import PCA
                             #  降维
from sklearn.model_selection import GridSearchCV,train_test_split,cross_val_score
                                    # 网格搜索       数据集切分       交叉验证技术
from sklearn.linear_model import LogisticRegression,LinearRegression,Lasso,Ridge
                                  # 逻辑回归            线性回归       套索  岭回归
from sklearn.svm import SVC,SVR
            # 支持向量机分类  回归
from sklearn.cluster import KMeans
                           # 聚类
from sklearn.neural_network import MLPClassifier,MLPRegressor
                                    #神经网络分类    回归
from sklearn.tree import DecisionTreeRegressor,DecisionTreeClassifier
                         #    决策树回归            决策树分类
from sklearn.neighbors import KNeighborsClassifier,KNeighborsRegressor
                                   # KNN分类            KNN回归
from sklearn.naive_bayes import GaussianNB,MultinomialNB,BernoulliNB
                              # 高斯贝叶斯  多项式贝叶斯   伯努利贝叶斯
from sklearn.ensemble import AdaBoostClassifier,AdaBoostRegressor,BaggingClassifier,BaggingRegressor,RandomForestClassifier,RandomForestRegressor
            #  集成学习
from sklearn.metrics import confusion_matrix,classification_report,accuracy_score,precision_score,recall_score,f1_score,roc_curve,roc_auc_score