我正在尝试从 Quandl 导入财务数据
library(Quandl)
library(xts)
currencies <- c("RUB", "USD", "JPY", "EUR", "CNY")
currencies <- paste("CURRFX/BRL", currencies, sep= "")
currency_ts <- lapply(as.list(currencies), Quandl, start_date="1999-01-01", end_date="2014-12-30", type="xts")
我用其他货币尝试了几次,它确实有效,但突然停止工作并开始给我这种错误:
错误:{"quandl_error":{"code":"QECx02","message":"您提交的 Quandl 代码不正确。请检查您的 Quandl 代码并重试。"}}