[R] Legends in xyplot

[Uwe Ligges]

See ?xyplot and its argument "legend".

Uwe Ligges




Ravi Varadhan wrote:

> Hi,
> 
>  
> 
> How can I add legends in the "xyplot" function, in the "lattice" library?
> Here is a simulation example:
> 
>  
> 
> x <- runif(90)
> 
> z <- sample(1:3, 90, rep=T)
> 
> y <- rnorm(90, mean = x^2 + z, sd=1)
> 
>  
> 
> library(lattice)
> 
> trellis.par.set(col.whitebg())
> 
> xyplot(y ~x, groups=as.factor(z), type = c('p', 'smooth'), span = .67)
> 
>  
> 
> Thanks in advance,
> 
> Ravi.
> 
>  
> 
> 
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> 
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