Dear R,
I am currently trying to caculate the coefficient of determination for
different quantile regression models. For example
fit<-rq(Hrubra~SessileInvertebrates,tau=0.8, data=Q1)
fit1<-rq(Hrubra~SessileInvertebrates,tau=0.8, data=Q2)
etc
Could someone please advise me how do you calculate the the sum of the weighted
absolute deviations in the models for the formula
R = 1-(Sum(f)/Sum(r))
I have looked all through the help files but the only example I can find is in
Stata.
Thanks in advance
Beth Strain
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