Question

我有以下代码：

import pandas as pd
from pandas import datetime
from pandas import DataFrame as df
from pandas_datareader import data as web
import datetime
import numpy as np
stock = '^GSPC'
start = datetime.date(2000,1,1)
end = datetime.date.today()
data = web.DataReader(stock, 'yahoo',start, end)
data.index = pd.to_datetime(data.index, format ='%Y-%m-%d')
data['pct_day']= data['Adj Close'].pct_change()
df1 = df(data['pct_day'].gt(0.01))

运行最后一行后，出现以下错误：TypeError: 'DataFrame' object is not callable。由于某种原因，如果我重新启动笔记本计算机，此命令将仅运行1次，然后出现此错误。您能告诉我为什么会出现此错误吗？

Answer 1

用[]代替()，将boolean indexing的最后一行更改为df，并将data更改为DataFrame，以过滤相同的df1 = data[data['pct_day'].gt(0.01)]，如掩码：< / p>

'Start Excel
On Error Resume Next
Set oExcel = GetObject(, "Excel.Application")    'Bind to existing instance of Excel

If Err.Number <> 0 Then    'Could not get instance of Excel, so create a new one
    Err.Clear
    On Error GoTo Error_Handler
    Set oExcel = CreateObject("Excel.Application")
    bExcelOpened = False
Else    'Excel was already running
    bExcelOpened = True
End If
On Error GoTo Error_Handler

TypeError：“ DataFrame”对象不可调用python

1 个答案: