Displaying 3 results from an estimated 3 matches for "raincida".
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2004 Aug 17
1
strptime() bug? And additional problem in package "tseries"
Hi all, I've got some problems with irts objects, one of which could be a bug:
1) Read a table with several columns from Postgres and the first column is
Timestamp with timezone (this is OK). An extract is:
raincida$ts:
[2039] "25/03/2000 22:00:00 UTC" "25/03/2000 23:00:00 UTC"
[2041] "26/03/2000 00:00:00 UTC" "26/03/2000 01:00:00 UTC"
[2043] "26/03/2000 02:00:00 UTC" "26/03/2000 03:00:00 UTC"
[2045] "26/03/2000 04:00:00 UTC" "26/03...
2004 Aug 17
3
Fwd: strptime() problem?
...,
but perhaps I wasn't clear enough in posting my questions.
I've got a postgres database which I read into R. The first column is
Timestamp with timezone, and my data are already in UTC format. An 'printed'
extract of R character column, resulting from the timestamptz field is:
raincida$ts:
[2039] "25/03/2000 22:00:00 UTC" "25/03/2000 23:00:00 UTC"
[2041] "26/03/2000 00:00:00 UTC" "26/03/2000 01:00:00 UTC"
[2043] "26/03/2000 02:00:00 UTC" "26/03/2000 03:00:00 UTC"
[2045] "26/03/2000 04:00:00 UTC" "26/0...
2004 Aug 18
1
Fwd: strptime() problem? - Resolved
...es for some ideas, viz. page 32 of:
>
> http://cran.r-project.org/doc/Rnews/Rnews_2004-1.pd
>
> In particular, try converting them to chron and then doing
> your manipulations in chron or else convert them from chron to
> POSIXct:
>
> require(chron)
> r.asc <- raincida$ts
> r.chron <- chron(substring(r.asc, 1, 10),
> substring(r.asc, 12, 19), format = c("d/m/y", "h:m:s"))
>
> r.ct <- as.POSIXct(r.chron)
> format(r.ct, tz="GMT") # display POSIXct in GMT
>
> Date: Tue, 17 Aug 2004 1...