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incoperate
2013 Feb 07
2
how to draw confidence interval lines of a fitted curve of polynominal regression
Hello,
I drew a plot of weight and height of people and fitted it with a
polynominal regression x^2.
(using curve())
Now I would like to draw the confidence interval line for the fitted curve.
Please kindly advise the code for the purpose.
Thank you.
Elaine
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