Dear All,
 
I wonderif there is a simple way to draw  a regression line in  the xyplot:
more specifically, let:
 
age <- c(20:30, 31:40 )
age.cut <- cut(age, breaks = 2 )
y<- rnorm(20)
x <- rnorm(20,4,1)
 

xyplot(y  ~  x| age.cut, xlab="x", ylab="y")

 

How to draw (in the plot given by xyplot)  the two  regression lines (y ~ x) corresponding to the two category of age.cut ?

 

Thanks a lot,

 

Bernard

 


		
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