Message-ID: <CACk-te3twqgUkDowCRD_f5D0LS1wG+E+XtJ6GBhRpZC1bF2joQ@mail.gmail.com>
Date: 2012-07-28T20:11:27Z
From: Bert Gunter
Subject: How to extract unique indices for time series Data?
In-Reply-To: <5014442D.5030004@gmail.com>
?unique
?duplicated
-- Bert
On Sat, Jul 28, 2012 at 12:57 PM, Christofer Bogaso
<bogaso.christofer at gmail.com> wrote:
> Dear all, I am into following coding:
>
>> library(quantmod)
>> Data1 <- get(getSymbols("TCS.NS", from = as.Date("2008-01-01"),
>> return.class = "zoo"))[,4]
> Warning messages:
> 1: In zoo(cd, order.by = index(x), ...) :
> some methods for ?zoo? objects do not work if the index entries in
> ?order.by? are not unique
> 2: In zoo(rval, index(x)[i]) :
> some methods for ?zoo? objects do not work if the index entries in
> ?order.by? are not unique
>
> Here, I guess there are some duplicated dates-index. Is there any function
> available to automatically extract unique indices ???
>
> Thanks and regards,
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
--
Bert Gunter
Genentech Nonclinical Biostatistics
Internal Contact Info:
Phone: 467-7374
Website:
http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm