You are using the plot method for class "date" from contributed package
'survival', so it was incorrect to post this as a bug report on R itself.
See
> args(survival:::plot.date)
function (x, y, ..., axes, xaxt, xlab, ylab, log = NULL, xlim = range(x,
na.rm = TRUE), ylim = range(y, na.rm = TRUE))
NULL
which defaults 'log' to the invalid value of NULL.
Similarly, the warning comes from passing the non-graphics-parameter
'type' to axis() inside that function.
Please take this up with the package maintainer (as the posting guide and
FAQ ask).
[You did not get a reply on R-help, at least from me, because you ignored
the advice to contact the package maintainer.]
On Mon, 14 Aug 2006, [EMAIL PROTECTED] wrote:
> Full_Name: Chanseok Park
> Version: 2.3.1
> OS: RHEL
> Submission from: (NULL) (130.127.112.89)
>
>
> Dear Sir/Madam:
>
> I wrote some examples below.
> The plot() function is not working properly with Julian date.
> For example, log="" should be a default option, but without the repetition of
> this default option in plot(), we can not draw it especially with Julian
> date.
> So, maybe, the plot() function might not be compatible with as.date().
>
> Thanks,
> C. Park
>
> ##############################################
> library(survival)
>
> dat=c("12-5-1995", "12-30-1995", "8-27-1996", "11-20-1996", "8-29-1997" )
>
> miles = c(106, 1468, 7298, 7935, 13440 )
>
> jdat = as.date(dat)
>
> plot( jdat, miles ) ## Not working
>
> plot( jdat, miles, log="" ) ## Works
>
> plot( jdat, miles, type="l") ## Not working
>
> plot( jdat, miles, log="", type="l") ## works with WARNING
>
> ##===========================
> ## Let's use as.Date() and as.date().
> jdat = as.Date( as.date(dat) )
>
> plot( jdat, miles ) ## Works
> plot( jdat, miles, log="" ) ## Works
> plot( jdat, miles, type="l") ## WOrks
>
> ______________________________________________
> R-devel@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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