annotating time axis by axis.POSIXct

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

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

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, 

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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