我想循环查看股票代码列表并使用chartSeries
打印它们。比总是改变论点容易。不幸的是,当我想要循环或子集时,我总是会收到错误:
Error in try.xts(x, error = "chartSeries requires an xtsible object"):
chartSeries requires an xtsible object
这里产生错误的代码:
library(quantmod)
stocks <- c("FIS", "AXP", "AVB")
symbols <- (getSymbols(stocks, src='yahoo'))
for (i in symbols){
chartSeries(i, theme="white",
TA="addVo();addBBands();addCCI();addSMA(20, col='blue');
addSMA(5, col='red');addSMA(50, col='black')", subset='last 30 days')
}
或仅限:
chartSeries(symbols[1], theme="white",
TA="addVo();addBBands();addCCI();addSMA(20, col='blue');
addSMA(5, col='red');addSMA(50, col='black')", subset='last 30 days')
答案 0 :(得分:0)
symbols
是一个字符向量。它不是xts对象的列表。在字符向量上调用chartSeries
会导致错误。
R> chartSeries("OOPS")
Error in try.xts(x, error = "chartSeries requires an xtsible object") :
chartSeries requires an xtsible object
一种解决方案是将所有下载的数据放入一个环境中,然后在环境中的每个对象上调用chartSeries
。
library(quantmod)
stocks <- c("FIS", "AXP", "AVB")
stockEnv <- new.env()
symbols <- getSymbols(stocks, src='yahoo', env=stockEnv)
for (stock in ls(stockEnv)){
chartSeries(stockEnv[[stock]], theme="white", name=stock,
TA="addVo();addBBands();addCCI();addSMA(20, col='blue');
addSMA(5, col='red');addSMA(50, col='black')", subset='last 30 days')
}