R help - Dec 2010 - xyplot

Hi
 
I am using following code to produce a xyplot for some longitudinal data. There
are 2 panels. It produced all longitudinal trajectories with mean profile. But
since the dataset it very large plot looks very messy. I want to show, say 10
randomly selected individual longitudinal trajectories together with mean
profile for entire dataset. Could any help me to alter the following code to do
this? or is there an alternative way?
 
Thanks in advance.
 
xyplot(Y~ time|status,groups=ID,data=heart,
type="l",lty=1, layout=c(2,1),main="",
panel = function (x, y, subscripts, groups, ...) {
panel.superpose (x, y, panel.groups =
"panel.xyplot",subscripts,groups, ...)
panel.loess (x, y, col = "Red", lwd = 2,span=0.75, ...)
})



      
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Try sample() which will allow you to randomly select 10 ID's from your  
ID variable, which you can then plot.

Andrew Miles


On Dec 16, 2010, at 10:49 AM, Rasanga Ruwanthi wrote:
> Hi
>
> I am using following code to produce a xyplot for some longitudinal  
> data. There are 2 panels. It produced all longitudinal trajectories  
> with mean profile. But since the dataset it very large plot looks  
> very messy. I want to show, say 10 randomly selected individual  
> longitudinal trajectories together with mean profile for entire  
> dataset. Could any help me to alter the following code to do this?  
> or is there an alternative way?
>
> Thanks in advance.
>
> xyplot(Y~ time|status,groups=ID,data=heart,
> type="l",lty=1, layout=c(2,1),main="",
> panel = function (x, y, subscripts, groups, ...) {
> panel.superpose (x, y, panel.groups =  
> "panel.xyplot",subscripts,groups, ...)
> panel.loess (x, y, col = "Red", lwd = 2,span=0.75, ...)
> })
>
>
>
>
> 	[[alternative HTML version deleted]]
>
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