24 reward = rewards[2,action_index] ~\Anaconda3\lib\site-packages\pandas\core\frame.py in __getitem__(self, key) 2925 if self.columns.nlevels > 1: 2926 return self._getitem_multilevel(key) -> 2927 indexer = self.columns.get_loc(key) 2928 if is_integer(indexer): 2929 indexer = [...
3023 return self._getitem_multilevel(key) -> 3024 indexer = self.columns.get_loc(key) 3025 if is_integer(indexer): 3026 indexer = [indexer] D:\RpaStudy\lib\site-packages\pandas\core\indexes\base.py in get_loc(self, key, method, tolerance) 3080 return self._engine.get_loc(casted_key...
set_index('Date', inplace=True) /opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/pandas/core/frame.py in __getitem__(self, key) 2910 if is_iterator(key): 2911 key = list(key) -> 2912 indexer = self.loc._get_listlike_indexer(key, axis=1, raise_missing=True)...
我正在尝试使用 np.random.shuffle() 方法对我的索引进行洗牌,但我一直收到一个我不明白的错误。如果有人能帮我解决这个问题,我将不胜感激。谢谢!
File "/Users/mona/anaconda/lib/python3.6/site-packages/pandas/core/indexes/base.py", line 2442, in get_loc return self._engine.get_loc(key) File "pandas/_libs/index.pyx", line 132, in pandas._libs.index.IndexEngine.get_loc File "pandas/_libs/index.pyx", line 154, in pandas._libs...
/Users/test/anaconda/lib/python3.6/site-packages/pandas/core/indexes/base.py in get_loc(self, key, method, tolerance) 2393 return self._engine.get_loc(key) 2394 except KeyError: -> 2395 return self._engine.get_loc(self._maybe_cast_indexer(key)) ...
INFO = {}classLocal(object):def__getattr__(self, item): ident = threading.get_ident()returnINFO[ident][item]def__setattr__(self, key, value): ident = threading.get_ident()ifidentinINFO: INFO[ident][key] = valueelse: INFO[ident] = {key:value} ...
由于NumPy 提供了全面且有文档的 C API,因此将数据传递给用低级语言编写的外部库,以及让外部库将数据作为 NumPy 数组返回给 Python 是很简单的。这个特性使 Python 成为封装传统 C、C++或 FORTRAN 代码库并为其提供动态和可访问接口的首选语言。 虽然NumPy 本身并不提供建模或科学功能,但了解 NumPy 数组和面向数组...
scalar_indexer(key, kind=self.name)263264def _convert_slice_indexer(self, key, axis):E:\Anaconda3\lib\site-packages\pandas\core\indexes\base.py in_convert_scalar_indexer(self, key, kind)2879elif kindin['loc']and is_integer(key):2880ifnot self.holds_integer():-> 2881return self._...
from collections import defaultdict def get_counts2(sequence): counts = defaultdict(int) # values will initialize to 0 for x in sequence: counts[x] += 1 return counts 我将逻辑写到函数中是为了获得更高的复用性。要用它对时区进行处理,只需将time_zones传入即可: 代码语言:javascript 复制 In [17...