Re: [R] add a linear regression line to the plot

2011-01-13 Thread ep
Hi, if it should be "lines" so you can do that xy.lm <- lm(y~x) lines(x, xy.lm$coeff[1] + x*xy.lm$coeff[2], col="blue", lwd=3) Regards ep -- View this message in context: http://r.789695.n4.nabble.com/add-a-linear-regression-line-to-the-plot-tp3215455p3216099.html Sent from the R help mail

Re: [R] add a linear regression line to the plot

2011-01-13 Thread Eik Vettorazzi
Hi, > lines(lm(x~y),col="red",lwd=1.5) should be abline(lm(y~x),col="red",lwd=1.5) hth. Am 13.01.2011 09:35, schrieb wangxipei: > > 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(1

Re: [R] add a linear regression line to the plot

2011-01-13 Thread Dennis Murphy
?abline On Thu, Jan 13, 2011 at 12:29 AM, wo 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",l

Re: [R] add a linear regression line to the plot

2011-01-13 Thread Patrick Connolly
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

Re: [R] add a linear regression line to the plot

2011-01-13 Thread ONKELINX, Thierry
Such things are very easy with the ggplot2 package install.packages("ggplot2") library(ggplot2) Dataset <- data.frame(A = c(10,20,40,80), B = c(30,40,100,200)) ggplot(data = Dataset, aes(x = A, y = B)) + geom_point() + geom_smooth(method = "lm") More info and example on the ggplot2 website: http: