def split_data(): test_size = float(entry.get()) X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=test_size, random_state=0) return X_train, X_test, y_train, y_test X_train, X_test, y_train, y_test = split_data() # 在函数外部调用split_data函数并保存返回值到全局变量中报错could not convert string to float:
时间: 2023-07-20 17:25:41 浏览: 49
这个错误通常是因为`entry.get()`返回的字符串不能被转换为浮点数。你可以检查一下`entry.get()`返回的具体内容是否为一个有效的浮点数,例如:
```
test_size_str = entry.get()
print(test_size_str)
test_size = float(test_size_str)
```
如果`entry.get()`返回的不是一个浮点数的字符串,你需要确保用户输入的是一个有效的浮点数,或者你可以添加一些异常处理代码来处理这种情况,例如:
```
try:
test_size = float(entry.get())
except ValueError:
print("Invalid input, please enter a valid float number.")
```
相关问题
def split_data(): test_size = float(entry.get()) X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=test_size, random_state=0) huafen=(f'X_train: {X_train}, X_test: {X_test}, y_train: {y_train}, y_test: {y_test}') a6=Text(root) a6.place(x=600, y=100,height=100,width=500) a6.insert(END, huafen)怎么把划分好的比例弄到函数外面
你可以将X_train、X_test、y_train、y_test作为函数的返回值,然后在函数外面接收这些返回值。具体代码如下所示:
```python
def split_data():
test_size = float(entry.get())
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=test_size, random_state=0)
return X_train, X_test, y_train, y_test
X_train, X_test, y_train, y_test = split_data()
huafen = f'X_train: {X_train}, X_test: {X_test}, y_train: {y_train}, y_test: {y_test}'
a6 = Text(root)
a6.place(x=600, y=100, height=100, width=500)
a6.insert(END, huafen)
```
这样,划分好的比例就可以在函数外面使用了。
def split_data(): global X_train, X_test, y_train, y_test test_size = float(entry.get()) X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=test_size, random_state=0) huafen=(f'X_train: {X_train}, X_test: {X_test}, y_train: {y_train}, y_test: {y_test}') a6=Text(root) a6.place(x=600, y=100,height=100,width=500) a6.insert(END, huafen)怎么让X_train, X_test, y_train, y_test 拿到def外面也能用
你可以将split_data函数的返回值设为X_train, X_test, y_train, y_test,然后在函数调用的地方将其保存到全局变量中,这样就可以在函数外部使用了。
例如:
```
def split_data():
test_size = float(entry.get())
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=test_size, random_state=0)
return X_train, X_test, y_train, y_test
X_train, X_test, y_train, y_test = split_data() # 在函数外部调用split_data函数并保存返回值到全局变量中
```
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