Revision cba29dfbf1a823f21f866437ee96e8a2735c1708 authored by Roger Koenker on 13 February 2016, 00:52:06 UTC, committed by cran-robot on 13 February 2016, 00:52:06 UTC
1 parent a137ab8
lprq.R
lprq <- function(x, y, h, tau = .5, m = 50)
{
## A toy routine to do locally polynomial quantile regression
xx <- seq(min(x),max(x),length=m)
fv <- xx
dv <- xx
for(i in 1:length(xx)) {
z <- x - xx[i]
wx <- dnorm(z/h)
r <- rq(y~z, weights=wx, tau=tau, ci=FALSE)
fv[i] <- r$coef[1.]
dv[i] <- r$coef[2.]
}
list(xx = xx, fv = fv, dv = dv)
}
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