[R] Problem with "date"-x-axis in lattice

[Gabor Grothendieck]

There is an example in the examples section of ?xyplot.zoo in the
zoo package of using panel.axis.  It works largely the same way even if
you don't use zoo.

On Fri, Jun 20, 2008 at 6:06 AM, Henning Wildhagen <HWildhagen at gmx.de> wrote:
> Hello list,
>
> i am trying to plot a continous variable y against a "date" variable, both
> in one dataframe named "df", using a code like this
>
> library(lattice)
> plot1<-xyplot(y~date, data=df, type="b")
>
> "date" is of class "Date", of course, format="%d.%m.%Y", and spans two
> calendar years. The problem is that the x-axis is labeled with only one
> tick mark corresponding to the year with century (%Y) of the second
> calendar year.
>
> Is there a way to define the increment of the x-axis tick marks?
>
> Cheers
>
> Henning
> --
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