Question

尝试使用quantmod包下载符号列表时遇到错误。

我有以下内容;

startdate <- "2017-11-05"
enddate <- "2018-01-20"

    Symbols <- c("XOM","MSFT","JNJ", "BRK.B","GE","CVX","WFC","PG","JPM","VZ","PFE","T","IBM","MRK","BAC","DIS","ORCL","PM","INTC","SLB")



    dailyreturns = lapply(Symbols, function(sym) {
      dailyReturn(na.omit(getSymbols(sym, from= startdate, to = enddate, auto.assign=FALSE, src = "yahoo")))
    })

返回以下错误消息;

Warning: BRK.B download failed; trying again.

我尝试使用complete cases和其他方法跳过失败的下载数据但仍然存在此错误

Warning: BRK.B download failed; trying again.
Error: BRK.B download failed after two attempts. Error message:
HTTP error 404.
Called from: getSymbols.yahoo(Symbols = "BRK.B", env = <environment>, verbose = FALSE, 
    warnings = TRUE, auto.assign = FALSE, from = "2017-11-05", 
    to = "2018-01-20")

提前致谢！

Answer 1

我也遇到了这个问题，原因是它不是BRK.B，而是BRK-B。通常，如果是-，则从.csv文件读取时，R会将列名的.转换为check.names = TRUE。

警告：BRK.B下载失败;再试一次。 [Quantmod] R包

1 个答案: