[R] xyplot

[Andrew Miles]

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, ...)
> })
>
>
>
>
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>
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