虽然计算SSE收到错误：“numpy.float64”对象不是可迭代

  • Z时代
  • 2024-01-10
  • 分类：问答

我试图计算方误差之和（SSE），下面提到虽然计算SSE收到错误：“numpy.float64”对象不是可迭代

def SSEadver(tv_train,radio_train,newsppr_train,y_train): 
y_train_predct = [] 
sse_train = 0 
y_train_predct_srs = 0 
# Calculating the predicted sales values on training data 
for i in range(0,len(tv_train)): 
    y_train_predct.append(2.8769666223179353 + (0.04656457* tv_train.iloc[i])+ (0.17915812*(radio_train.iloc[i])) + (0.00345046*(newsppr_train.iloc[i]))) 
# ** Here I Convert y_train_predct's type List to Series, but still it is showing type as list** 
y_train_predct_srs = pd.Series(y_train_predct) 
# *** Due above converting not working here y_train_predct_srs.iloc[j]) is not working*** 
# Now calculate SSE (sum of Squared Errors) 
for j in range (len(y_train)): 
    sse_train += sum((y_train.iloc[j] - y_train_predct_srs.iloc[j])**2) 
return y_train_predct, y_train_predct_srs 
sse_train = SSEadver(tv_train,radio_train,newsppr_train, y_train)

代码，而我运行此代码我收到错误：

TypeError         Traceback (most recent call last) 
<ipython-input-446-576e1af02461> in <module>() 
20  return y_train_predct, y_train_predct_srs 
21 
    ---> 22 sse_train = SSEadver(tv_train,radio_train,newsppr_train, y_train) 
    23 
    <ipython-input-446-576e1af02461> in SSEadver(tv_train, radio_train, newsppr_train, y_train) 
14  # Now calculate SSE (sum of Squared Errors) 
15  for j in range (len(y_train)): 
---> 16 sse_train += sum((y_train.iloc[j] -   y_train_predct_srs.iloc[j])**2) 
17 
18 
TypeError: 'numpy.float64' object is not iterable

为什么我收到THI错误？我使用Python 3.X.X

回答：

我不能看到所有的代码，但是，它看起来像任何

y_train.iloc或y_train_predct_srs.iloc

不是列表，但实际上numpy.float64。你应该检查他们是绝对是列表，然后再试一次。

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