lm1 <- lm(y~x, data=mydata, subset=mydata$patchchoice==1)
lm2 <- lm(y~x, data=mydata, subset=mydata$patchchoice==2)
abline(lm1, col="Blue")
abline(lm2, col="Red" )
Should do it. Not likely the best way but a way.
Andy.
andydol...@gmail.com
On 7 April 2010 19:17, Samantha Reynolds wrote:
Hello
I am trying to plot two lines of best fit on a scatter plot.
I'm plotting number of visits (y) against personality (x), half the
plots are blue for patchchoice one and the other plots are red for
patchchoice two (these options come from one factor, see below) . So i
need a line for
Hello
I am trying to plot two lines of best fit on a scatter plot.
I'm plotting number of visits (y) against personality (x), half the
plots are blue for patchchoice one and the other plots are red for
patchchoice two (these options come from one factor, see below) . So i
need a line for
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