I'm not particularly familiar with EVT but it seems that here the term
exists to scale down the time base to that wherein extreme values were
identified. Just a hunch though...
If you want more accurate clarification you may wish to contact the
package maintainer, but to be honest I wouldn't worry too much about
it -- it seems very specific to the problem he was addressing in the
vignette, not to the inner workings of the package.
Michael
On Fri, Oct 21, 2011 at 9:42 AM, Amina Shahzadi <aminashahz...@gmail.com> wrote:
>> npy <- length(events1[, "obs"])/(diff(range(ardieres[, "time"],
>
> + na.rm = TRUE)) - diff(ardieres[c(20945, 20947), "time"]))
>
> This line is from the mannual "A user's Guide to POT Approach". I am just
> trying to ask why the values 20945, 20947 are used??
>
> Regards
>
> On Fri, Oct 21, 2011 at 4:19 PM, R. Michael Weylandt
> <michael.weyla...@gmail.com> wrote:
>>
>> Perhaps you could tell us what function you are talking about.... npy
>> is not part of the POT package in the version on my machine and those
>> letters don't seem to show up anywhere consecutively at all on my
>> system, according to ??npy. Similarly, this trick produces no results:
>>
>> sapply(ls("package:POT"), function(f) sum(grepl("20945",deparse(get(f)))))
>>
>> Michael
>>
>> On Fri, Oct 21, 2011 at 3:35 AM, Amina Shahzadi <aminashahz...@gmail.com>
>> wrote:
>> > Hi Sir
>> >
>> > It is requested to please tell the reason why the range of c(20945,
>> > 209547)
>> > is used in this function
>> >
>> >> npy <- length(events1[, "obs"])/(diff(range(ardieres[, "time"],
>> >
>> > + na.rm = TRUE)) - diff(ardieres[c(20945, 20947), "time"]))
>> > Please tell logic.
>> >
>> > Looking for quick response.
>> >
>> > Regards
>> >
>> >
>> > --
>> > *Amina Shahzadi*
>> >
>> > [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > R-help@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.
>> >
>
>
>
> --
> Amina Shahzadi
>
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