On 02/25/03 12:22, This Rutishauser wrote: >can anyone help me with a hint how to find a function to fit a linear >trend line into a scatter plot. as well as testing it for significance.
Look at the help page for abline(). That is what you use for drawing lines in a plot. It turns out that you can specify the line with lm(), and summary(lm()) gives you the significance test. For example (all but the last line from ?abline): data(cars) z <- lm(dist ~ speed, data = cars) plot(cars) abline(z) summary(z) -- Jonathan Baron, Professor of Psychology, University of Pennsylvania R page: http://finzi.psych.upenn.edu/ ______________________________________________ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
