[R] xyplot, type="b"

[Paul Murrell]

Hi


Benjamin Tyner wrote:
> Thanks, but this proposal has the same effect as type="b" in
> panel.xyplot, which as noted in the documentation is the same as
> type="o". To clarify, I don't want type="o" at all; I want there to be
> gaps between the lines and points. Have a look at
> 
> plot(y~x,data=dat,type="b")


Is this what you mean ... ?

dat<-data.frame(x=1:10,y=1:10,z=sample(letters[1:3],10,T))
xyplot(y~x | z, data = dat,
       panel = function(x, y, ...) {
         panel.lines(x, y, ...)
         panel.points(x, y, col=trellis.par.get("background")$col,
                      cex=1.5, pch=16, ...)
         panel.points(x, y, ...)
       })

Paul


> ronggui wrote:
> 
>>> apropos("^panel")
>> will show you what panel function exist.It seems that panel.points
>> plus panel.lines are what you want.
>>
>>> dat<-data.frame(x=1:10,y=1:10,z=sample(letters[1:3],10,T))
>>> xyplot(y~x | z, data = dat,pan=function(x,y,...)
>>> {panel.points(x,y,...);panel.lines(x,y,...)})
>>
>>
>>
>>
>>
>> 2006/6/21, Benjamin Tyner <btyner at gmail.com>:
>>
>>> Is there any way to have xyplot produce the "points connected by lines"
>>> analogous to the effect of type="b" under standard graphics? I seem to
>>> recall doing this in xyplot at one point.
>>>
>>> Thanks,
>>> Ben
>>>
>>> ______________________________________________
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>>>
>>
> 
> 
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-- 
Dr Paul Murrell
Department of Statistics
The University of Auckland
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