Question

运行以下代码时出现问题，我不知道该怎么做：

fd2['Close'] = fd2['Close'].apply(lambda x: 1 if x == '300' else 0)
X_train, X_test, y_train, y_test = \
    train_test_split(fd2['Volume_(BTC)'].values, fd2['Close'].values)

KeyError                                  
Traceback (most recent call last)
/Users/traviskerr/anaconda3/lib/python3.6/site-
packages/pandas/core/indexes/base.py in get_loc(self, key, method, 
tolerance)
   2392             try:
-> 2393                 return self._engine.get_loc(key)
   2394             except KeyError:

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc 
(pandas/_libs/index.c:5239)()

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc 
(pandas/_libs/index.c:5085)()

pandas/_libs/hashtable_class_helper.pxi in 
pandas._libs.hashtable.PyObjectHashTable.get_item 
(pandas/_libs/hashtable.c:20405)()

pandas/_libs/hashtable_class_helper.pxi in 
pandas._libs.hashtable.PyObjectHashTable.get_item 
(pandas/_libs/hashtable.c:20359)()

KeyError: 'Close'

During handling of the above exception, another exception occurred:

KeyError

请帮忙！谢谢！

Answer 1

这通常意味着您的数据框不包含'Close'列。尾随空格或错误的大写/小写字符可以作为源。确保您的实际列名不像

' Close' 要么 'close'

当试图运行测试列车拆分时，我遇到了一个关键错误，我该怎么办？

1 个答案: