[R] Label individual points in lattice by and ID

[Felix Andrews]

xyplot(y~x | f1 + f2, data= dat,
groups=ID,
type="l",
panel= function(x, y,groups, subscripts, ...){
    panel.xyplot(x, y, groups = groups, subscripts = subscripts, ...)
    panel.text(x, y, groups[subscripts])
    })


2009/12/8 Pat Schmitz <pschmitz at illinois.edu>:
> Thanks
>
> This works, but I lose the ability to say plot a line by group connecting
> the numbered points,
> how do I recover this, or say color the groups by ID..
>
> xyplot(y~x | f1 + f2, data= dat,
> groups=ID,
> type="l",
> panel= function(x, y,groups, subscripts, ...){
>     panel.text(x, y, groups[subscripts])
>     })
>
> Pat
>
> On Mon, Dec 7, 2009 at 3:18 AM, Felix Andrews <felix at nfrac.org> wrote:
>>
>> If you want to plot each point as the text of its ID, use a panel
>> function:
>> panel = function(x, y, groups, subscripts, ...) panel.text(x, y,
>> groups[subscripts])
>>
>> If you want to add labels interactively to selected points:
>> xyplot(y~x | f1 + f2, groups=ID,dat)
>> ## repeat for each panel:
>> trellis.focus(); panel.identify(); trellis.unfocus()
>>
>>
>> 2009/12/7 Pat Schmitz <pschmitz at illinois.edu>:
>> > Sorry.  My previous code didn't quite display my problem correctly.  To
>> > make
>> > my point more clear, I want to use my "groups" as the label for the
>> > point,
>> > or rather the point itself.  The key becomes illegible with many groups.
>> >
>> > x<-as.factor(1:5)
>> > y<-rnorm(1:10)
>> > f1<-c("a","b")
>> > f2<-c("x","y")
>> >
>> > dat<-expand.grid(x=x, y=y, f1=f1, f2=f2)
>> > dat$ID <- 1:dim(dat)[1]
>> >
>> > xyplot(y~x | f1 + f2, groups=ID,dat)
>> >
>> > xyplot(y~x | f1 + f2, groups=ID,auto.key=TRUE,dat)  # more accurate rep
>> > of
>> > problem with key
>> >
>> >
>> > Thanks
>> > Pat
>> >
>> >
>> > On Sun, Dec 6, 2009 at 9:58 PM, Pat Schmitz <pschmitz at illinois.edu>
>> > wrote:
>> >
>> >> I am using a plot to inspect data points, and I would like to identify
>> >> each
>> >> point with respect to an ID. At issue is that I am producing a faceted
>> >> plot
>> >> with many IDs (96) and the key is far to large to accurately identify
>> >> points
>> >> by color.
>> >>
>> >> 1) Can you direct me on labeling or printing data points by an ID
>> >> instead
>> >> of a point, as in "ID" in this toy example
>> >> 2) alternately is there method for printing a key for each panel which
>> >> shows only those IDs which appear in the panel at hand?
>> >>
>> >> x<-as.factor(1:5)
>> >> y<-rnorm(1:10)
>> >> ID<-1:5
>> >> f1<-c("a","b")
>> >> f2<-c("x","y")
>> >>
>> >> dat<-expand.grid(x=x, y=y, id=ID, f1=f1, f2=f2)
>> >>
>> >> xyplot(y~x | f1 + f2, dat)
>> >>
>> >>
>> >>
>> >> Thanks
>> >> Pat
>> >>
>> >> --
>> >> Patrick Schmitz
>> >> Graduate Student
>> >> Plant Biology
>> >> 1206 West Gregory Drive
>> >> RM 1500
>> >>
>> >
>> >
>> >
>> > --
>> > Patrick Schmitz
>> > Graduate Student
>> > Plant Biology
>> > 1206 West Gregory Drive
>> > RM 1500
>> >
>> >        [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > 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.
>> >
>>
>>
>>
>> --
>> Felix Andrews / 安福立
>> Postdoctoral Fellow
>> Integrated Catchment Assessment and Management (iCAM) Centre
>> Fenner School of Environment and Society [Bldg 48a]
>> The Australian National University
>> Canberra ACT 0200 Australia
>> M: +61 410 400 963
>> T: + 61 2 6125 4670
>> E: felix.andrews at anu.edu.au
>> CRICOS Provider No. 00120C
>> --
>> http://www.neurofractal.org/felix/
>
>
>
> --
> Patrick Schmitz
> Graduate Student
> Plant Biology
> 1206 West Gregory Drive
> RM 1500
>



-- 
Felix Andrews / 安福立
Postdoctoral Fellow
Integrated Catchment Assessment and Management (iCAM) Centre
Fenner School of Environment and Society [Bldg 48a]
The Australian National University
Canberra ACT 0200 Australia
M: +61 410 400 963
T: + 61 2 6125 4670
E: felix.andrews at anu.edu.au
CRICOS Provider No. 00120C
-- 
http://www.neurofractal.org/felix/