我的团队，遇到了问题
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Avg.SessionLength TimeonApp TimeonWebsite LengthofMembership Yearly Amount Spent
0 34.497268 12.655651 39.577668 4.082621 587.951054
1 31.926272 11.109461 37.268959 2.664034 392.204933
2 33.000915 11.330278 37.110597 4.104543 487.547505
3 34.305557 13.717514 36.721283 3.120179 581.852344
4 33.330673 12.795189 37.536653 4.446308 599.406092
5 33.871038 12.026925 34.476878 5.493507 637.102448
6 32.021596 11.366348 36.683776 4.685017 521.572175
想申请KNN
X = df[['Avg. Session Length', 'Time on App','Time on Website', 'Length of Membership']]
y = df['Yearly Amount Spent']
from sklearn.model_selection import train_test_split
X_train, X_test, y_train, y_test = train_test_split(X, …