代码运行次数:0 运行 AI代码解释 Usage:pipenv install[OPTIONS][PACKAGES]...Installs provided packages and adds them to Pipfile,or(ifno packages are given),installs all packages from Pipfile.Options:--system System pip man
delete_nan = pd.DataFrame(delete_nan) delete_nan = delete_nan.dropna(axis=0,how='any') # 删除有nan的行 delete_nan = delete_nan.dropna(axis=0,how='all') # 删除所有列都是nan的行 5、将数组重复n遍 x = np.tile(ec_lon[0], ec_lat.shape[0]) 第一个参数是需要被重复的数组,第二个...
If None, will attempt to use everything, then use only numeric data. Not implemented for Series. 例子: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import numpy as np import pandas as pd df=pd.DataFrame(data=[[1.4,np.nan],[7.1,-4.5],[np.nan,np.nan],[0.75,-1.3]], index=[...
change your directory to your TA-Lib folder, and remember to activate your virtual env to mytrader(if you use mytrader as your vitrual env), then execute the following command: pip install TA_Lib‑0.4.24‑cp39‑cp39‑win_amd64.whl 服务器安装 sudo apt-get install <package> import...
df['sc'] = (df['er'] * (sc_fast - sc_slow) + sc_slow) **2df['kama'] =0.0foriinrange(er_window,len(df)):ifdf['kama'][i-1] !=0: df['kama'][i] = df['kama'][i-1] + df['sc'][i] * (df['close'][i] - df['kama'][i-1])else: ...
if-then 对一列数据执行 if-then / if-then-else 操作,把计算结果赋值给一列或多列。 AAA BBB CCC 0 4 10 100 1 5 20 50 2 6 30 -30 3 7 40 -50 1. 2. 3. 4. 5. 对其中一列筛选,并操作另一列: In [3]: df.loc[df.AAA >= 5, 'BBB'] = -1 ...
""" __hash__ = lambda self: 0Output>>> dictionary == ordered_dict # If a == b True >>> dictionary == another_ordered_dict # and b == c True >>> ordered_dict == another_ordered_dict # then why isn't c == a ?? False # We all know that a set consists of only unique...
| Create a new string object from the given object. If encoding or | errors is specified, then the object must expose a data buffer | that will be decoded using the given encoding and error handler. | Otherwise, returns the result of object.__str__() (if defined) ...
(d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works...
allow_nan=True, cls=None, indent=None, separators=None, default=None, sort_keys=False, **kw):"""Serialize ``obj`` to a JSON formatted ``str``. If ``skipkeys`` is true then ``dict`` keys that are not basic types (``str``, ``int``, ``float``, ``bool``, ``None``) ...