Re: [Rd] round(4.5) does not work (PR#9439)

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: Sun 07 Jan 2007 - 17:39:53 GMT

On 1/6/2007 10:01 PM, cstevenson@edisonresearch.com wrote:
> Anything that has 4.5 in it will always round to 4. For example 24.5 becomes 24 and 34.5 becomes 34. Or 1234567894.5 will become 1234567894.
>

>> round(4.5)

> [1] 4

>> round(3.5)
> [1] 4

That's behaving as documented, using "banker's rounding". See the ?round man page.

Duncan Murdoch

> Thanks,
>
> Clint W. Stevenson
> Senior Statistician
> Edison Media Research
> cstevenson@edisonresearch.com
>
>
> --please do not edit the information below--
>
> Version:
> platform = i386-pc-mingw32
> arch = i386
> os = mingw32
> system = i386, mingw32
> status =
> major = 2
> minor = 4.1
> year = 2006
> month = 12
> day = 18
> svn rev = 40228
> language = R
> version.string = R version 2.4.1 (2006-12-18)
>
> Windows XP Professional (build 2600) Service Pack 2.0
>
> Locale:
> LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
>
> Search Path:
> .GlobalEnv, package:stats, package:graphics, package:grDevices, package:utils, package:datasets, package:methods, Autoloads, package:base
>
> ______________________________________________
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