Perhaps:

lct <- Sys.getlocale("LC_TIME")
Sys.setlocale("LC_TIME", "English")
format.Date(Date, "%b-%Y")

For restore the configurations:
Sys.setlocale("LC_TIME", lct)
-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

On 17/08/07, inaki@goisolutions.net <inaki@goisolutions.net> wrote:
>
> Dear R users,
>
> Plotting question from a R beginner...
>
> When I try to plot a response through time, for example:
> >Date<-c("2006-08-17", "2006-08-18", "2006-08-19", "2006-08-20")
> >response<-c(4,4,8,12)
> >as.Date(Date)
> >plot(Date,response)
>
> The dates on the graphic appear in spanish. This I guess is the default
> way of plotting because my windows is in spanish, but I need a "aug 17"
> instead of "ago 17" (agosto is the spanish for august)...
> I've tried,
> >format(Date, "%m %d")
> And although it does change the way Date is listed, well it's still
> plotted in spanish...
> I've also searched through par() settings, but xaxp,xaxs, xaxt, xpd and
> xlog do not solve my problem...
>
> Could anyone help me solve this format question?
>
> Thanks a million in advance,
>
> Greetings,
> Iñaki Etxebeste Larrañaga
>         M.Sc. Biologist
>         Producción Vegetal y Recursos Forestales
>         ETSIIAA Universidad de Valladolid
>         Avda. Madrid,57
>         34071 Palencia (Spain)
>
> ______________________________________________
> R-help@stat.math.ethz.ch 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.
>

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