Hi all, can somebody correct me where I was wrong in following set of codes?
I have a list where each element is zoo object and I want to call a
particular zoo object through some assigned name, as follows:

> library(zoo)
> List <- vector("list", length=2)
> names(List) <- LETTERS[1:2]
> List[[1]] <- zooreg(rnorm(10), start=as.Date("2000-01-01"), frequency=1)
> List[[2]] <- zooreg(rnorm(20), start=as.Date("2000-01-01"), frequency=11)
> #List
> namess <- "A"
> window(List$namess, start=as.Date("2000-01-01"),
end=as.Date("2000-01-01"))
Error in attr(x, "tsp") <- c(1, NROW(x), 1) :
  attempt to set an attribute on NULL

Thanks for your time.

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