[R] add a linear regression line to the plot

Patrick Connolly p_connolly at slingshot.co.nz
Thu Jan 13 10:23:50 CET 2011

On Thu, 13-Jan-2011 at 04:35PM +0800, wangxipei wrote:

|> Dear R users,
|>    I am a new R user. My problem is very simple: I want to add a linear regression line to the plot(type="p"), codes are as below:
|> x<-c(10,20,40,80)
|> y<-c(30,40,100,200)
|> plot(x,y,type="p")
|> lines(lm(x~y),col="red",lwd=1.5)
|> I got only plot without linear line.
|> Many thanks ahead for your advice!

What about if you tried 

My guess is that would be more likely to work.

   ___    Patrick Connolly   
 {~._.~}                   Great minds discuss ideas    
 _( Y )_  	         Average minds discuss events 
(:_~*~_:)                  Small minds discuss people  
 (_)-(_)  	                      ..... Eleanor Roosevelt

More information about the R-help mailing list