知道一系列收盘价向量X,length=1000,求
对数收益率的
R语言代码
acf(int[,2], lag.max = 15,type = "correlation", plot = TRUE,main='int monthly
acf(int.l[,2], lag.max = 15,type = "correlation", plot = TRUE,main='int monthly
log return')
Box.test(int[,2], lag = 5, type = "Ljung-Box")
Box.test(int[,2], lag = 10, type = "Ljung-Box")
Box.test(int.l[,2], lag = 5, type = "Ljung-Box")
Box.test(int.l[,2], lag = 10, type = "Ljung-Box")
运行结错误办
> int <- read.table("d-intc7208.txt", head=T)
错误于file(file, "rt") : 打链结
外: 警告信息:
In file(file, "rt") :
打文件'd-intc7208.txt': No such file or directory
+ acf(int.l[,2], lag.max = 15,type = "correlation", plot = TRUE,main='int monthly
错误: 意外符号 in:
"
acf(int.l[,2], lag.max = 15,type = "correlation", plot = TRUE,main='int"
> log return')
错误: 意外符号 in "log return"
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