我需要在时间间隔内运行 foo 函数,并填充数据帧(例如,每秒向 df 添加时间戳)。我仍然遇到错误消息: NameError: name ‘df’ is not defined 谢谢您的回答。 代码: WAIT_TIME_SECONDS = 1 class ProgramKilled(Exception): pass df = pd.DataFrame([]) ### ### def foo(): global df time1 = str(d...
拼写错误，首行导入时把导入的包重命名为detasets，而第三行使用时缺写成datasets，首行拼写错误，应写为dataset
df = pd.DataFrame() 如果在创建dataframe时使用了df变量,请确保在使用之前正确赋值给它。例如,以下代码创建了一个包含三列的dataframe: 代码语言:txt 复制 import pandas as pd data = {'col1': [1, 2, 3], 'col2': [4, 5, 6], 'col3': [7, 8, 9]} df = pd.DataFrame...
I am trying to plot box plot with some data, but I am getting name 'df' is not defined error. Below is the code: import numpy as np import pandas as pd from matplotlib import pyplot as plt import os % matplotlib inline # load the dataset df = pd.read_csv("C:/Users/Kumar Chandan...
When using Pandas in Python, a library for data manipulation and analysis, you might have encountered an error like "NameError: name 'df'/'pd' is not defined". In this Byte, we'll show why these errors occur and how you can avoid them. Understanding this 'df' NameError The df name...
在数据处理和分析中，JSON是一种常见的数据格式，而Pandas DataFrame是Python中广泛使用的数据结构。将JSON...
df.drop('date', axis=1, inplace=True) curr_timestamp =int(df.ix[0][0])if(j ==0): df0 = df.copy()else: data = pd.concat([df, df0], axis=0) data.drop("timestamp", axis=1, inplace=True)returndata# DataFrame# N-Cryptocurrency Portfolio (tickers)fsym = ['BTC','ETH',...
Data Areas (Windows) Lamps (Windows) midi/out (Windows) Server Core Functions by Name (Windows) Server Core for Windows Server 2012 R2 Functions by Name (Windows) IMsRdpWorkspace::IsWorkspaceCredentialSpecified method (Windows) MSMQMessage.SenderIdType PROPID_M_CLASS Miscellaneous Topics MSMQTransact...
Apply on df df['res'] = df[['uid','api_url']].apply(query(),axis = 1) NameError: name 'uid' is not defined Below query is working fine while apply on variable and hardcoding ui_id:'random_number' def query_api(api_url): headers = {"Content-Type": "application/json"} json...