qreg - Stata
qreg - Stata
qreg - Stata
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2 <strong>qreg</strong> — Quantile regression<br />
vceopts<br />
denmethod<br />
bwidth<br />
Description<br />
nonparametric density estimation technique<br />
bandwidth method used by the density estimator<br />
denmethod<br />
fitted<br />
residual<br />
kernel [ (kernel) ]<br />
Description<br />
use the empirical quantile function using fitted values; the default<br />
use the empirical residual quantile function<br />
use a nonparametric kernel density estimator; default is<br />
epanechnikov<br />
bwidth<br />
hsheather<br />
bofinger<br />
chamberlain<br />
Description<br />
Hall–Sheather’s bandwidth; the default<br />
Bofinger’s bandwidth<br />
Chamberlain’s bandwidth<br />
kernel<br />
epanechnikov<br />
epan2<br />
biweight<br />
cosine<br />
gaussian<br />
parzen<br />
rectangle<br />
triangle<br />
Description<br />
Epanechnikov kernel function; the default<br />
alternative Epanechnikov kernel function<br />
biweight kernel function<br />
cosine trace kernel function<br />
Gaussian kernel function<br />
Parzen kernel function<br />
rectangle kernel function<br />
triangle kernel function<br />
i<strong>qreg</strong> options<br />
Description<br />
Model<br />
quantiles(# #) interquantile range; default is quantiles(.25 .75)<br />
reps(#)<br />
perform # bootstrap replications; default is reps(20)<br />
Reporting<br />
level(#)<br />
nodots<br />
display options<br />
set confidence level; default is level(95)<br />
suppress display of the replication dots<br />
control column formats, row spacing, line width, display of omitted<br />
variables and base and empty cells, and factor-variable labeling
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