问题描述
在 R Studio(v1.0.143、Win7、R-3.4.4、Performance Analytics 1.5.2、quantmod 0.4-12)中运行下面的简短 R 代码返回以下图表:
Running the short R-code below in R Studio (v1.0.143, Win7, R-3.4.4, Performance Analytics 1.5.2, quantmod 0.4-12) returns the following chart:
library(PortfolioAnalytics)
library(quantmod)
getSymbols("INDU", src = "yahoo", from = "2017-01-01", to = "2017-06-26")
getSymbols("VZ", src = "yahoo", from = "2017-01-01", to = "2017-06-26")
ret_INDU <- Return.calculate(Cl(INDU))[-1,]
ret_VZ <- Return.calculate(Cl(VZ))[-1,]
chart.Scatter(ret_INDU, ret_VZ)
它好像出了点问题.有人可以看看这是否可重现吗?我已经升级到最新版本的 R.
It looks like something went seriously wrong with it. Could someone have a look if this is reproducible? I already upgraded to the latest version of R.
推荐答案
你必须设置 xlab = " 和 ylab = ".似乎默认值NULL 是问题所在.如果您明确选择列，您将避免超过 1 列的对象出现问题.行:
You have to set xlab = "" and ylab = "". It seems that the default valueNULL is the problem. If you explicitly select the columns you will avoid problems with objects with more than 1 columns. The line:
chart.Scatter(ret_INDU$INDU.Close, ret_VZ$VZ.Close,xlab = "",ylab="")
应该给你所有荣耀的图表:-)
should give you your chart in all its glory :-)
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