[R] Rounding behavior

[Ryan Derickson]

Hello,

Apologies if this is a simple misunderstanding.

round((.575*100),0) gives 57
round(57.5,0) gives 58

Why?

Ryan Derickson
University of Cincinnati

On Tue, Oct 9, 2018, 10:08 AM PIKAL Petr <petr.pikal using precheza.cz> wrote:

> Hi
>
> You could use brute force approach. Just print out "file.names" and
> estimate ordering vector.
> In czech locale it is
>
> oo <- c(6, 11, 1, 4, 5, 2, 3, 10, 12, 9, 7, 8)
>
> In english locale it is different :-)
>
> After that
> file.names[oo]
>
> should give you correct order of file names
>
> Cheers
> Petr
>
> > -----Original Message-----
> > From: R-help <r-help-bounces using r-project.org> On Behalf Of Ek Esawi
> > Sent: Tuesday, October 9, 2018 3:44 PM
> > To: r-help using r-project.org
> > Subject: [R] Reorder file names read by list.files function
> >
> > Hi All--
> >
> > I used base R list.file function to read files from a directory. The
> file names are
> > months (April, August, etc). That's the system reads them in
> alphabetical order.,
> > but i want to reordered them in calendar order (January, February,
> > ...December).. I thought i might be able to do it via RegEx or possibly
> gtools
> > package, I am wondering if there is an easier way.
> >
> > Thanks--EK
> >
> > Example
> > path = "C:/Users/name/Downloads/MyFiles"
> > file.names <- dir(path, pattern =".PDF")
> >
> > Example output
> > Output:
> > "February.PDF"  "January.PDF" "March.PDF"
> > Desired output
> > "January.PDF"  "February.PDF" "March.PDF"
> >
> > ______________________________________________
> > R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > 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.
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