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Adding R-square to linear regression

Rob Robinson 
Thomas,
 Can you not use text() to add a label? If you are using lm() to generate
the regression you can get at the R.sq by calling summary:
summary(c)$r.squared [there's also an adj.r.squared, have a look at
summary.lm]
So something along the lines of
text(x=xpos,y=ypos,summary(obj)$r.squared)
ought to work, see code below
Hth
rob


a=c(1,2,3,4,5)
b=c(1,3,2,5,4)
c=lm(a~b)
summary(c)$r.squared
plot(a~b)
text(x=2,y=2,summary(c)$r.squared)

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Thread (6 messages)

Thomas Szegvary Adding R-square to linear regression Jul 20 Rob Robinson Adding R-square to linear regression Jul 20 Andrew Niccolai Adding R-square to linear regression Jul 20 Thomas Szegvary Adding R-square to linear regression Jul 20 Hadley Wickham Adding R-square to linear regression Jul 20 Thomas Szegvary Adding R-square to linear regression Jul 20