On Jul 19, 2010, at 9:37 PM, Steve McDonald wrote:

I'm a new user, so my apologies for what is likely a dumb question...

I am having a hard time getting a table of regression results when using Koenker's code for quantile regression with fixed effects (http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R ). I use the example data parameters that Koenker provides (see below).

m <- 3
n <- 10
s <- rep(1:n,rep(m,n))
x <- exp(rnorm(n*m))
X <- cbind(1,x)
u <- x*rnorm(m*n) + (1-x)*rf(m*n,3,3)
a <- rep(rnorm(n),rep(m,n))
y <- a + u
fit <- rq.fit.panel(X,y,s)

When I use "summary(fit)", I get the following output...
    Length Class  Mode
coef 16     -none- numeric
ierr  1     -none- numeric
it    1     -none- numeric
time  1     -none- numeric

When I use "list(fit)", I can't tell which coefficients correspond to which parameters...
[[1]]$coef
[1]  7.701321 -2.608782  7.664906 -1.866059  7.894542
[6] -1.878973 -6.117778 -1.570840 -5.380230 -5.815231
[11] -7.191127 -5.671467 -1.712052 -5.055224 -5.623140
[16] -5.617846

Is there a way to get a table of results or a way of discerning what these coeffs refer to? Thanks in advance.

Did you read the documentation in the rq.fit.panel function?

" 2. On return the coefficient vector has m*p + n elements where m is the number + # quantiles being estimated, p is the number of colums of X, and n is the
+ #     number of distinct values of s.  The first m*p coefficients are the
+ #     slope estimates, and the last n are the "fixed effects""

--

David Winsemius, MD
West Hartford, CT

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