【PYTHON】leave one out cross validation

 from pandas import read_csv

from sklearn.model_selection import LeaveOneOut

from sklearn.model_selection import cross_val_score

from sklearn.linear_model import LogisticRegression

filename = 'pima-indians-diabetes.csv'

names = ['preg', 'plas', 'pres', 'skin', 'test', 'mass', 'pedi', 'age', 'class']

dataframe = read_csv(filename, names=names)

array = dataframe.values

#splitting the array to input and output

X = array[:,0:8]

Y = array[:,8]

num_folds = 10

seed = 7

loocv = LeaveOneOut()

model = LogisticRegression(solver='liblinear')

results = cross_val_score(model, X, Y, cv=loocv)

print("Accuracy: %.3f%% (%.3f%%) " % (results.mean()*100.0, results.std()*100.0))