R 将（）类xts复制到列表中

我有一个xts对象

frame

frame <- structure(c("a", "a", "a"), .Dim = c(3L, 1L), index = structure(c(946702800, 
946749600, 946796400), tzone = "", tclass = c("POSIXct", "POSIXt"
)), class = c("xts", "zoo"), .indexCLASS = c("POSIXct", "POSIXt"
), tclass = c("POSIXct", "POSIXt"), .indexTZ = "", tzone = "")


> frame
                    [,1]
2000-01-01 05:00:00 "a" 
2000-01-01 18:00:00 "a" 
2000-01-02 07:00:00 "a" 

---

在调用

replicate

时设置

simplify=FALSE

：

> replicate(5, frame, simplify=FALSE)
[[1]]
                    [,1]
2000-01-01 05:00:00 "a" 
2000-01-01 18:00:00 "a" 
2000-01-02 07:00:00 "a" 

> replicate(5, frame, simplify=FALSE)
[[1]]
                    [,1]
2000-01-01 05:00:00 "a" 
2000-01-01 18:00:00 "a" 
2000-01-02 07:00:00 "a"