Question

我需要在现有数据框中创建另一列。对于这一新列，我需要使用for循环传递一些值，并且这些值是字符串类型的。我无法获得所需的输出。请对此发表您的看法。

我首先创建了一个系列，然后尝试通过for循环将一些字符串值传递给该系列。之后，该系列将通过pandas插入函数传递，以将具有已传递值的系列附加到数据框中。

Type_new = pd.Series([])

for i in range(len(data2.Status)):
    if data2['Status'][i]=='Junk Lead':
        Type_new[i]='Low Potential'
    elif data2['Status'][i]=='Not Responding':
        Type_new[i]='Low Potential'
    elif data2['Status'][i]=='Just Enquiry':
        Type_new[i]='Low Potential'
    elif data2['Status'][i]=='In Progress Negative':
        Type_new[i]='Low Potential'
    elif data2['Status'][i]=='LOST':
        Type_new[i]='Low Potential'
    elif data2['Status'][i]=='CONVERTED':
        Type_new[i]='High Potential'
    elif data2['Status'][i]=='Potential':
        Type_new[i]='High Potential'
    elif data2['Status'][i]=='Long Term':
        Type_new[i]='High Potential'
    elif data2['Status'][i]=='In Progress Positive':   
        Type_new[i]='High Potential'
    elif data2['Status'][i]=='Open': 
         Type_new[i]='High Potential'
    elif data2['Status'][i]=='converted': 
        Type_new[i]='High Potential'
    else:
        Type_new[i]= data2["Status"][i]

data2.insert(6,"Status Clubbed",Type_new) 
data2.head(2)

KeyError                                  Traceback (most recent call last)
<ipython-input-136-bf45be76fb3e> in <module>
      1 for i in range(len(data2.Status)):
----> 2     if data2['Status'][i]=='Junk Lead':
      3         Type_new[i]='Low Potential'
      4     elif data2['Status'][i]=='Not Responding':
      5         Type_new[i]='Low Potential'

~\Anaconda3\lib\site-packages\pandas\core\series.py in __getitem__(self, key)
    866         key = com.apply_if_callable(key, self)
    867         try:
--> 868             result = self.index.get_value(self, key)
    869 
    870             if not is_scalar(result):

~\Anaconda3\lib\site-packages\pandas\core\indexes\base.py in get_value(self, series, key)
   4373         try:
   4374             return self._engine.get_value(s, k,
-> 4375                                           tz=getattr(series.dtype, 'tz', None))
   4376         except KeyError as e1:
   4377             if len(self) > 0 and (self.holds_integer() or self.is_boolean()):

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_value()

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_value()

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()

pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.Int64HashTable.get_item()

pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.Int64HashTable.get_item()

KeyError: 0

如何在某些情况下在数据框中插入新列并向其传递值

0 个答案: