[R] Add annotation text outside of an xyplot (lattice package)

[Bert Gunter]

... but what if there are multiple panels?

"The layer mechanism is a method for augmenting a panel function. It
allows expressions to be added to the panel function without knowing
what the original panel function was. "

As I understand it, the OP requested annotation for the entire lattice
display, not single panels thereof. This seems more like a "sub" or
"legend"  addition.

Cheers,
Bert
Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Sun, Sep 25, 2016 at 11:44 AM, Richard M. Heiberger <rmh at temple.edu> wrote:
> library(lattice)
> library(latticeExtra)
> tmp <- data.frame(x=1:10, y=1:10)
>
> xyplot(y ~ x, data=tmp)
>
> xyplot(y ~ x, data=tmp, main="text outside panel clipped") +
>   ## "+" must be on same line as first statement.
>   ## This use of "+" is from latticeExtra.
>   latticeExtra::layer(panel.text(x=2, y=-0.5, label="very interesting"))
>
> xyplot(y ~ x, data=tmp, main="outside text displayed",
>        par.settings=list(clip=list(panel=FALSE)) ## permit text
> outside the panel
>                          ) +
>   ## "+" must be on same line as first statement.
>   ## This use of "+" is from latticeExtra.
>   latticeExtra::layer(panel.text(x=2, y=-0.5, label="very interesting"))
>
> ## I use the phrasing "latticeExtra::layer", not the simpler "layer".
> ## latticeExtra and ggplot2 both use layer and they use it incompatibly.
> ## It is possible for both packages to be loaded at the same time, therefore
> ## I specify latticeExtra explicitly.
>
> ## ltext and panel.text are the same.
>
>
> On Sun, Sep 25, 2016 at 12:32 PM, Jun Shen <jun.shen.ut at gmail.com> wrote:
>> Thanks Bert, sub works pretty well.
>>
>> Carlos, thanks for the suggestion. As I am not familiar with latticeExatra,
>> not sure how hard it is to make it work with my plot. I'll try.
>>
>> On Sat, Sep 24, 2016 at 11:04 AM, Bert Gunter <bgunter.4567 at gmail.com>
>> wrote:
>>
>>> No.
>>>
>>> ltext/panel.text plots text *within* panels; IIUC, the  OP requested
>>> text outside the plots. For that see the details for "main" and/or
>>> "sub" in ?xyplot. I think it could also be done more flexibly via a
>>> legend or a key with a title but no content -- again, see the Help
>>> page -- but haven't tried it.
>>>
>>> Cheers,
>>> Bert
>>>
>>>
>>> Bert Gunter
>>>
>>> "The trouble with having an open mind is that people keep coming along
>>> and sticking things into it."
>>> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>>>
>>>
>>> On Fri, Sep 23, 2016 at 11:49 PM, Rainer Hurling <rhurlin at gwdg.de> wrote:
>>> > Hi,
>>> >
>>> > one possible solution is to use ltext().
>>> >
>>> > ltext(xcoord, ycoord, label="TEST", adj=c(0.5,0.5))
>>> >
>>> > You have to know or to find out best fitting coordinates.
>>> >
>>> > Via adj you can control, if the text should adjust left, center or right
>>> > to the coords, and above, center or bottom of them.
>>> >
>>> > HTH,
>>> > Rainer Hurling
>>> >
>>> >
>>> > Am 22.09.2016 um 16:04 schrieb Jun Shen:
>>> >> Dear list,
>>> >>
>>> >> Just wonder if there is a way to add annotation text outside an xyplot,
>>> >> (e.g. the bottom of the plot). the panel.text seems only add text within
>>> >> the plot. Thanks.
>>> >>
>>> >> Jun
>>> >
>>> > ______________________________________________
>>> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>>> > 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.
>>>
>>
>>         [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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.