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[英]Syntax error in python code to find Prime-factors. Id appreciate if someone could help me
[英]Syntax error in python machine learning sklearn code mosh Python course. Id appreciate if someone could hep me
我正在做一个带有 Mosh 编程的 Python 课程,并且在一些机器学习代码中出现错误
代码是这样的->
import pandas as pd
from sklearn.tree import DecisionTreeClassifier
from sklearn.model_selection import train_test_split
from sklearn.metrics import accuracy_score
music_data = pd.read_csv('music.csv')
X = music_data.drop(columns=['genre'])
y = music_data['genre']
model = DecisionTreeClassifier
X_train, X_test, y_train, y_train = train_test_split(X, y, test_size=0.2)
model.fit(X_train, y_train)
predictions = model.predict(X_test)
score = accuracy_score(y_test, predictions)
score
我收到一条错误消息 ->
TypeError Traceback (most recent call last)
<ipython-input-28-0880d58e9ac4> in <module>
10 model = DecisionTreeClassifier
11 X_train, X_test, y_train, y_train = train_test_split(X, y, test_size=0.2)
---> 12 model.fit(X_train, y_train)
13 predictions = model.predict(X_test)
14
TypeError: fit() missing 1 required positional argument: 'y'
我是这些库的新手,能够解决问题,如果您能帮助我,我将不胜感激。
错误来自您没有生成 model 的实例这一事实。
model = DecisionTreeClassifier
这是不正确的,因为DecisionTreeClassifier
是 function,而不是方法。 要创建 model,您需要将上面的代码行替换为:
model = DecisionTreeClassifier()
这将创建 model,现在您可以传递数据以适应它并执行所有进一步的操作(预测、得分等)。
此外,正如 Gavin Wong 指出的那样,使用train_test_split()
时存在错误,因为您定义y_train
两次。
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