| NONPAR The
NONPAR command implements nonparametric density estimation
and regression smoothing.
In general, the format for density estimation is:
NONPAR vars /
DENSITY options
In general, the format for regression smoothing is:
NONPAR depvar indeps / options
The available options are:
| Option |
Description |
|
DENSITY
|
Specifies kernel density estimation is required.
|
|
GRAPH
|
Plots results with GNUPLOT.
|
|
PCOEF
|
For regression smoothing prints the coefficients.
|
|
BRHO=
|
Specifies the parameter for the boundary modified kernel.
|
|
COEF=
|
For regression smoothing saves the coefficients in a matrix.
|
|
DELTA=
|
Used with METHOD=LOWESS to group observations.
|
|
FCSE=
|
Saves prediction standard errors in the variable specified.
|
|
HATDIAG=
|
Saves the diagonal elements of the smoother matrix.
|
|
INCOVAR=
|
Specifies an input covariance matrix in lower triangular form.
|
|
ITER=
|
Used with METHOD=LOWESS to specify the number of iterations.
|
|
METHOD=
|
The options are EPAN, MULTI, NORMAL,
QUARTIC, TRIANG, UNIFORM, and LOWESS
|
|
RWEIGHTS=
|
For METHOD=LOWESS saves the robustness weights.
|
|
SIGMA=
|
Saves conditional standard errors in the variable specified.
|
|
SMATRIX=
|
Saves the N x N smoother matrix.
|
|
SMOOTH=
|
Specifies the value of the smoothing parameter.
|
Other available options are:
LIST, BEG=, END=,
PREDICT=, RESID=.
|