如何获得R中给定股票报价的市场部门?

问题描述

我目前正在尝试获取任何给定股票报价器的市场领域

For example,AAPL - Technology 
XOM - Energy

我已经从此link中尝试了以下操作,并收到了这些错误

#Attempt to intsall qamo
    install.packages("qmao",repos="http://r-forge.r-project.org")
    library(qmao)
    install.packages('rjsonio')
    library(rjsonio)
    install.packages('pander')
    library(pander)
    spyh <- getHoldings("SPY",auto.assign=FALSE)
    head(ss[ss$Symbol %in% rownames(spyh),])
    
    error: Error in file(file,"rt") : cannot open the connection
        In addition: Warning message:
        In file(file,"rt") :
          cannot open URL 'http://www.masterdata.com/helpfiles/ETF_List_Downloads/AllTypes.csv': HTTP status was '404 Not Found'

#Install & Use TTR
library(TTR)
ss <- stockSymbols()
error: Fetching AMEX symbols...
Error in file(file,"rt") : cannot open the connection
In addition: Warning message:
In file(file,"rt") : InternetopenUrl Failed: 'The operation timed out'

解决方法

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