[R] expanding 1:12 months to Jan:Dec

[Moshe Olshansky]

One possible (but not very elegant) solution is:

> aa <- paste(1:12,":10:2009",sep="")
> dd<-as.Date(aa,format="%m:%d:%Y")
> mon <- format(dd,"%b")
> mon
 [1] "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"


--- On Thu, 20/8/09, Liviu Andronic <landronimirc at gmail.com> wrote:

> From: Liviu Andronic <landronimirc at gmail.com>
> Subject: [R] expanding 1:12 months to Jan:Dec
> To: "r-help at r-project.org Help" <r-help at r-project.org>
> Received: Thursday, 20 August, 2009, 5:14 PM
> Dear R users
> I would like to do some spreadsheet style expansion of
> dates. For
> example, I would need to obtain a vector of months. I
> approached in an
> obviously wrong way:
> > paste(01:12)
>  [1] "1"  "2"  "3"  "4"  "5" 
> "6"  "7"  "8"  "9"  "10" "11" "12"
> > as.Date(paste(01:12), "%m")
>  [1] NA NA NA NA NA NA NA NA NA NA NA NA
> 
> to subsequently format(.., "%b"). Other than writing the
> months
> manually, could anyone suggest an easier way to obtain such
> a list?
> Liviu
> 
> 
> 
> 
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