How to extract unique indices for time series Data?
?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,
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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