sklearnmodel_selectioncross_val_score

sklearn.model_selection.cross_val_score sklearn.model_selection.cross_val_score(estimator, X, y=None, groups=None, scoring=None, cv=None, n_jobs=1, verbose=0, fit_params=None, pre_dispatch=2*n_jobs) Evaluate a score by cross-validation estimator: estimator object implementing…

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ubuntusklearnfitmkl

hivehbase wordcountINFO ipc.Client: Retrying connect to server hdfs mapreducehabase RetriesExhaustedWithDetailsException hadoop streaming python nltk hadoopClassNotFoundException numpy loadtxt dtype=str,b10/31/2016 python3.5 ValueError:…

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scikit-learn]

Pythonsklearn_pandas scikit-learn ( sklearn) sklearn_pandas github sklearn OneHotEncoder(),LabelEncoder(),LabelBinarizer(),MultiLabelBinarizer() testdata = pd.DataFrame(pet: [cat,dog,dog,fish],age: [4,6,3,3],salary:[4,5,1,1]) petagesalaryagesalarypet: one-hot array([[ 1., 1., 1., 1.]])…

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Sklearn(

pandaskaggletitanictrain.csv import pandas as pd df = pd.read_csv(train.csv) df = df.fillna(0) 0 df.head() Cumings, Mrs. John Bradley (Florence Briggs Th……

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ѧϰ–)sklearnѡ

sklearn.feature_selectionģϵѡ/άͣѧϰ׼ȷȻڸάݼϵܡ VarianceThresholdѡļ׼򷽷ɾijֵĬɾֵͬ һݼҪɾ80һ㣨أDzŬķʽ ǿѡVarianceThreshold=.8 * (1 – .8): from sklearn.feature_selection import VarianceThreshold X = [[0, 0, 1], [0, 1, 0],…

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