Message-ID: <BAY23-F4ED86B198E914B50CDED196D90@phx.gbl>
Date: 2006-12-02T19:47:25Z
From: Ricardo Bessa
Subject: nonlinear quantile regression
Hello, I?m with a problem in using nonlinear quantile regression, the
function nlrq.
I want to do a quantile regression o nonlinear function in the form
a*log(x)-b, the coefficients ?a? and ?b? is my objective. I try to use the
command:
funx <- function(x,a,b){
res <- a*log(x)-b
res
}
Dat.nlrq <- nlrq(y ~ funx(x, a, b), data=Dat, tau=0.25, trace=TRUE)
But a can?t solve de problem, How I put the formula ?y ~ funx(x,a,b)??
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