[R] annotating time axis by axis.POSIXct

[Gavin Simpson]

On Thu, 2009-11-05 at 10:28 +0100, Petr PIKAL wrote:
> Dear all
> 
> I try to format labels on axis as standard ones does not look well, but I 
> am not able to make axis.POSIXct to work. here is an example

But you are plotting an axis using an object of class "Date", so why use
axis.POSIXct?

Your example works if I do:

axis.Date(1, at=x, format="%m/%Y")

The examples in ?axis.Date show that this does work using axis.POSIXct
if one does have a POSIXct object.

HTH

G

> 
> x<-seq(as.Date("2008-1-1"), as.Date("2009-9-6"), by="2 months")
> y<-rnorm(11)
> plot(x,y) #not very sophisticated axis
> 
> plot(x,y, axes=F)
> axis(2)
> axis.POSIXct(1, at=x, format="%m/%Y") # no axis
> 
> The same is on R2.10.0, 2.10.dev and 2.11.dev
> 
> R session
> 
> > version
>                _ 
> platform       i386-pc-mingw32 
> arch           i386 
> os             mingw32 
> system         i386, mingw32 
> status 
> major          2 
> minor          10.0 
> year           2009 
> month          10 
> day            26 
> svn rev        50208 
> language       R 
> version.string R version 2.10.0 (2009-10-26)
> 
> Czech Locale
> 
> Is it a bug or am I missing something?
> 
> regards
> Petr
> 
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