How to show the second abline ?
On 11/09/2013 03:04 AM, Domokos P?ter wrote:
Hi,
I have the next script in R:
x=c(8.0,17.5,23.5,32.0,38.5,48.5,58.5,68.5)
y=c(267,246,290,294,302,301,301,298)
gap.plot(x,y,ylim=c(8,310),pch=8,cex=0.5,
xlab=c('Time'),ylab=c('uS'),
gap=c(30,240),gap.axis='y',
ytics=c(10,20,30,270,280,290,300))
abline(h=31,col='white',lwd=20)
axis.break(axis=2,31)
axis.break(axis=4,31)
abline(coef(lm(x~y)),col=1)#Why don't show this???
Hi Peter, Perhaps because both of these numbers: coef(lm(x~y)) (Intercept) y -176.5047160 0.7425131 are off the scale of your plot. Do you really want: lmcoef<-coef(lm(y~x)) abline(lmcoef[1]-210,lmcoef[2],col=1) Jim