python3 name 'inputs' is not defined
时间: 2023-09-05 08:11:14 浏览: 36
这个错误通常出现在使用了变量 `inputs`,但是在当前作用域中没有定义该变量。可能的解决方法是:
1. 检查是否正确导入了必要的模块或库。
2. 检查代码中是否有语法错误或逻辑错误。
3. 检查变量名是否拼写正确,并且确保在使用之前已经定义过。
如果您能提供更多的代码信息,我可以更准确地帮助您解决这个问题。
相关问题
name 'inputs' is not defined
It seems that you are trying to use the variable `inputs` in your code, but you have not defined it anywhere.
To fix this error, you need to define `inputs` as a variable before using it in your code. You can define it by assigning a value to it, like this:
```
inputs = "Hello, how are you?"
```
Replace "Hello, how are you?" with the actual input that you want to use in your code.
If you are still having trouble, please provide more context or code, and I'll try my best to help you.
报错:name 'calculate_empirical_distribution' is not defined
抱歉,我之前的回答中漏掉了定义 `calculate_empirical_distribution` 函数的部分。下面是补充完整的代码:
```python
import numpy as np
import scipy.stats as stats
# 设置参数
k = 3 # 随机游动序列的数量
n = 100 # 样本长度
# 生成随机游动序列
def generate_random_walk_sequence(k, n):
sequences = []
for i in range(k):
sequence = np.cumsum(np.random.randn(n))
sequences.append(sequence)
return sequences
# 计算Xt的值
def calculate_Xt(Xc, I):
return Xc - 1 + I
# 训练ANN模型
def train_ann_model(inputs, targets):
# 使用合适的训练算法和损失函数训练ANN模型
# 这里只是一个示例,具体的训练过程需要根据实际情况进行选择和实现
model = YourANNModel()
model.train(inputs, targets)
return model
# 估计参数Δ和计算t统计量
def estimate_delta_and_calculate_t_statistic(errors):
delta = np.mean(errors)
t_statistic = delta / (np.std(errors) / np.sqrt(len(errors)))
return delta, t_statistic
# 重复计算并收集t统计量
def calculate_t_statistics(sequences, Xc):
t_statistics = []
for sequence in sequences:
I = np.random.randn(len(sequence))
Xt = calculate_Xt(Xc, I)
inputs = np.array([Xt, sequence]).T
targets = sequence
model = train_ann_model(inputs, targets)
predicted_sequence = model.predict(inputs)
errors = predicted_sequence - sequence
_, t_statistic = estimate_delta_and_calculate_t_statistic(errors)
t_statistics.append(t_statistic)
return t_statistics
# 计算经验分布
def calculate_empirical_distribution(t_statistics):
return stats.norm.fit(t_statistics)
# 计算临界值
def calculate_critical_value(empirical_distribution, confidence_level):
return stats.norm.ppf(1 - (1 - confidence_level) / 2, *empirical_distribution)
# 主函数
def main():
# 生成随机游动序列
sequences = generate_random_walk_sequence(k, n)
# 设置参数
Xc = 0
# 计算t统计量
t_statistics = calculate_t_statistics(sequences, Xc)
# 计算经验分布
empirical_distribution = calculate_empirical_distribution(t_statistics)
# 计算临界值
confidence_level = 0.95
critical_value = calculate_critical_value(empirical_distribution, confidence_level)
print("Critical value:", critical_value)
if __name__ == "__main__":
main()
```
请注意,这只是一个简单的示例代码,具体的实现需要根据实际情况进行适当的修改和调整。
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