On 11/11/2012 04:36 PM, Осипов Денис wrote:
Hello.
How can I plot the regression curve with its confidence interval?
I use nls(y~a*x^b), then plot(x,y), add curve with
lines(x,predict(nls(y~a*x^b))). But I can't add to plot CI for my curve.
Hi Denis,
If you know where you want the lines for the CI the dispersion function
in the plotrix package will do what you want, use the type=l and
border=1 arguments with fill=NA.
Jim
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