[R] Lattice scales question: using "at" when log = TRUE
Deepayan Sarkar
deepayan.sarkar at gmail.com
Sun May 17 03:03:09 CEST 2009
On 5/16/09, Afshartous, David <DAfshartous at med.miami.edu> wrote:
>
>
> Thanks, but even with typo corrected as below the supplied marks are not followed:
> xyplot(y ~ t, type = "b", scales = list(y = list(log = TRUE, at = c(10^1,10^2, 10^2.5, 10^3))))
>
How so? Looks OK to me.
-Deepayan
>
>
> ________________________________________
> From: Gabor Grothendieck [ggrothendieck at gmail.com]
> Sent: Saturday, May 16, 2009 6:11 PM
> To: Afshartous, David
> Cc: r-help at r-project.org
> Subject: Re: [R] Lattice scales question: using "at" when log = TRUE
>
>
> Your parentheses are wrong. It should be
>
> y = list(log = TRUE, at = ...)
>
>
> On Sat, May 16, 2009 at 5:11 PM, Afshartous, David
> <DAfshartous at med.miami.edu> wrote:
> >
> > All,
> >
> > I have a simple lattice plot where I have set log = TRUE for the y scale.
> >
> > When I attempt to change the tick locations via the "at" argument within
> > scales, the supplied numeric vector is not followed. Any suggestions much
> > appreciated for the example below:
> >
> > y = c(10^1.5, 10^2, 10^3, 10^2)
> > t = c(1,2,3,4)
> > xyplot(y ~ t, type = "b", scales = list(y = list(log = TRUE)))
> >
> > ## tick marks not followed for supplied marks below:
> > xyplot(y ~ t, type = "b", scales = list(y = list(log = TRUE), at = c(10^1,
> > 10^2, 10^2.5, 10^3)))
> >
> > Cheers,
> > David
> >
> > PS -
> > Another thing is that the scale is no longer in scientific notations, but
> > that is okay since this can be fixed via the labels argument within scales:
> > e.g., labels = c(expression(10^1), expression(10^2), ...)
> > An example of fancy labels for log axes is on p.147 of Deepayan's Lattice
> > book.
> >
> > ______________________________________________
> > R-help at r-project.org 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.
> >
>
> ______________________________________________
> R-help at r-project.org 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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