[R] Help with 'get.hist.quote' on tseries
Kurt.Hornik at ci.tuwien.ac.at
Mon Oct 29 13:08:48 CET 2001
>>>>> Ko-Kang Wang writes:
> Well I have the same problem but ONLY WITH trying to get ibm. In
> other words all other examples in the ?get.hist.quote are fine:
> I am running R 1.3.1 on Windows ME.
I am confused. Why does the ibm example fail and the others not?
In general, I think the reported problems are due to Windows locale
peculiarities. The code in get.hist.quote() does
lct <- Sys.getlocale("LC_TIME")
dat <- gsub(" ", "0", as.character(x[, 1]))
dat <- as.POSIXct(strptime(dat, "%d-%b-%y"), tz = "GMT")
and I think this should be safe to ensure a C locale when reading in the
quotes. We have to do this as entries are of the form
If relying on strptime correctly parsing C locale month name abbrevs
cannot be assumed, we could fall back to hard-wiring month names.
The problem reported comes in fromchar() inside as.POSIXlt so it would
be interesting to see what strptime(dat, "%d-%b-%y") gives on platforms
where the problem occurs.
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