Re: [R] plot confidence limits of a regression line - problem

Hi, the predict-function is not very good in guessing names from a given new dataset. So if you want to predict x1 from some new x2 values, your newdata argument should contain some x2 - values. predict(model, newdata=data.frame(x2=seq(0,4)), interval = c("confidence"), level = 0.90,type="re

Re: [R] plot confidence limits of a regression line - problem

It is not an error but rather a warning. As you should have seen, R went ahead and returned estimates for 24 predicted values for x1 for arguments to the formula of x2. In R errors and warnings are very different. You are expected to post full console messages to prevent this sort of confus

[R] plot confidence limits of a regression line - problem

hi, I don't know what I am doing wrong, but with that code; x1 <- c(1.60, 0.27, 0.17, 1.63, 1.37, 2.00, 0.90, 1.07, 0.89, 0.43, 0.37, 0.59, 0.47, 1.83, 1.79, 0.90, 0.72, 1.83, 0.23, 1.97, 2.03, 2.19, 2.03, 0.86) x2 <- c(1.30, 0.24, 0.20, 0.50, 1.33, 1.87, 1.30, 0.75, 1.07, 0.43, 0.37, 0.8

Re: [R] plot confidence limits of a regression line

How about library(ggplot2) qplot(wt, mpg, data = mtcars, geom=c("point", "smooth"),method = "lm"). On Sat, Mar 7, 2009 at 6:19 PM, Martin Batholdy wrote: > hi, > > > is there an easy way to plot the "confidence lines" or "confidence area" of > the beta weight in a scatterplot? > > > like in this

[R] plot confidence limits of a regression line

hi, is there an easy way to plot the "confidence lines" or "confidence area" of the beta weight in a scatterplot? like in this plot; http://www.ssc.wisc.edu/sscc/pubs/screenshots/4-25/4-25_4.png thanks! __ R-help@r-project.org mailing list htt