Question

将名为station的对象列转换为类别；有些值偏低，而有些则不

列站的值设为a，d，e，F 我尝试了以下代码

data_obs[station] = data_obs[station].astype('category')
data_obs.info()

我希望柱站成为类别，但我遇到一个错误，值MASDEMIAN001（当其他值是巴黎，朗德雷斯时...）

TypeError                                 Traceback (most recent call 
last)
pandas\_libs\index.pyx in pandas._libs.index.IndexEngine.get_loc()

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

TypeError: an integer is required

During handling of the above exception, another exception occurred:

KeyError                                  Traceback (most recent call 
last)
<ipython-input-100-ef309af5bdeb> in <module>
      1 # Typer les variables catégories de OBSERVATION
----> 2 data_obs[station] = data_obs[station].astype('category')
      3 data_obs.info()

~\Anaconda3\lib\site-packages\pandas\core\series.py in __getitem__(self, 
key)
    765         key = com._apply_if_callable(key, self)
    766         try:
--> 767             result = self.index.get_value(self, key)
    768 
    769             if not is_scalar(result):

~\Anaconda3\lib\site-packages\pandas\core\indexes\base.py in 
get_value(self, series, key)
   3116         try:
   3117             return self._engine.get_value(s, k,
-> 3118                                           tz=getattr(series.dtype, 
'tz', None))
   3119         except KeyError as e1:
   3120             if len(self) > 0 and self.inferred_type in ['integer', 
'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()

KeyError: 'MASDEMIAN001'

熊猫将对象列转换为类别

0 个答案: