[R] Data formatting for matplot

[Gabor Grothendieck]

Try this:

library(lattice)
xyplot(y ~ x, mydat, groups = id)


On Sun, Sep 27, 2009 at 10:42 PM, Tim Clark <mudiver1200 at yahoo.com> wrote:
> Dear List,
>
> I am wanting to produce a multiple line plot, and know I can do it with matplot but can't get my data in the format I need.  I have a dataframe with three columns; individuals ID, x, and y.  I have tried split() but it gives me a list of matrices, which is closer but not quite what I need.  For example:
>
> id<-rep(seq(1,5,1),length.out=100)
> x<-rnorm(100,5,1)
> y<-rnorm(100,20,5)
>
> mydat<-data.frame(id,x,y)
> split.dat<-split(mydat[,2:3],mydat[,1])
>
> I would appreciate your help in either how to get this into a format acceptable to matplot or other options for creating a multiple line plot.
>
> Thanks,
>
> Tim
>
>
>
> Tim Clark
> Department of Zoology
> University of Hawaii
>
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