3. Machine Learning & Deep Learning/190930_(2) _ Gradient Boosting.ipynb

{"nbformat":4,"nbformat_minor":0,"metadata":{"colab":{"name":"190930_(2) ; Gradient Boosting.ipynb","provenance":[],"collapsed_sections":[]},"kernelspec":{"name":"python3","display_name":"Python 3"}},"cells":[{"cell_type":"code","metadata":{"id":"bQvQtYUaC31-","colab_type":"code","colab":{}},"source":["from sklearn.model_selection import train_test_split\n","from sklearn.datasets import load_breast_cancer\n","import matplotlib.pyplot as plt\n","import numpy as np\n","%matplotlib inline"],"execution_count":0,"outputs":[]},{"cell_type":"code","metadata":{"id":"bWjWEpkFC7_P","colab_type":"code","colab":{"base_uri":"https://localhost:8080/","height":204},"outputId":"e98f6546-a70e-4dd0-db32-09941beea807","executionInfo":{"status":"ok","timestamp":1569816636494,"user_tz":-540,"elapsed":780,"user":{"displayName":"백서연","photoUrl":"","userId":"13608049772715071568"}}},"source":["from sklearn.ensemble import GradientBoostingClassifier\n","cancer = load_breast_cancer()\n","X_train, X_test, y_train, y_test = train_test_split(cancer.data, cancer.target,\n","random_state=0)\n","gbrt = GradientBoostingClassifier(random_state=0)\n","gbrt.fit(X_train, y_train)"],"execution_count":3,"outputs":[{"output_type":"execute_result","data":{"text/plain":["GradientBoostingClassifier(criterion='friedman_mse', init=None,\n","                           learning_rate=0.1, loss='deviance', max_depth=3,\n","                           max_features=None, max_leaf_nodes=None,\n","                           min_impurity_decrease=0.0, min_impurity_split=None,\n","                           min_samples_leaf=1, min_samples_split=2,\n","                           min_weight_fraction_leaf=0.0, n_estimators=100,\n","                           n_iter_no_change=None, presort='auto',\n","                           random_state=0, subsample=1.0, tol=0.0001,\n","                           validation_fraction=0.1, verbose=0,\n","                           warm_start=False)"]},"metadata":{"tags":[]},"execution_count":3}]},{"cell_type":"code","metadata":{"id":"_21VICUSXJF8","colab_type":"code","colab":{}},"source":[""],"execution_count":0,"outputs":[]}]}