Michael wrote: >>plot(testError, col="red") >>lines(testVar, col="black") > > > Only one plot (the red one) appear on the Window, the black line did not > appear...what's wrong?
Hang on a second, just let me hack into your machine so I can find out what 'testError' and 'testVar' are.... I'm guessing that the lines for 'testVar' are outside the range of the plot formed by 'testError', but this is a guess and it could be a bazillion other things. We have no way of knowing unless you tell is the first things about testError and testVar. For starters, try telling us what: str(testVar) str(testError) summary(testVar) summary(testError) say. Barry ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
