[R-SIG-Finance] [R-sig-finance] How to create seasonal variable for zoo object.

[Gabor Grothendieck]

On Sun, Jun 21, 2009 at 11:42 AM, Bogaso<bogaso.christofer at gmail.com> wrote:
>
> Hi all, how to create a seasonal variable for a zoo object? For example I
> have following dataset :
>
> rm(list = ls())

Please don't post code like that. Someone could download it and find out
you had wiped out their workspace.

> URL <- "http://www.jmulti.de//download/datasets/e6.dat"
> dat1 <- readLines(URL)
> dat11 <- dat1[-c(1:11)]
> dat12 <- read.table(textConnection(dat11))
> library(zoo)
> TS.dat <- zooreg(dat12[,c(2,1)], start = 1972.2, frequency = 4)
>
>
> I want to create seasonal variable for each quarter for "TS.dat"

Its not clear what is meant by "seasonal variable" but perhaps you
are looking for cycle:

cbind(TS.dat, cycle = cycle(TS.dat))

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