GBKREG2D(1) | User Commands | GBKREG2D(1) |

gbkreg2d - Kernel non linear regression for bivariate data

**gbkreg2d** [*options*]

2D kernel estimation of conditional moments. Data are read from
standard input as triplet (x,y,z). The moments of z are computed on a
regular grid in x and y The kernel bandwidth if not provided with the option
**-H** is set automatically. Different bandwidths can be specified for x
and y. Different moments are given in different data block. Options
**-n**, **-f**, **-H** and **-S** accept comma separated values
to specify different values for x and y components

**-n**- number of points where the estimation is computed (default 10)
**-f**- fraction of the support for which to print the result (default .9)
**-H**- set the kernel bandwidth explicitly
**-S**- scale the kernel bandwidth with respect to heuristic 'optimal'
**-K**- choose the kernel: 0 Epanenchnikov, 1 Rectangular, 2 Silverman type I 3 Silverman type II (default 0)
**-O**- set the output, comma separated list of m mean, v standard deviation, s skewness and k kurtosis (default m)
**-D**- switch off data de-variation procedure
**-v**- verbose mode
**-F**- specify the input fields separators (default " \t")
**-h**- this help

Written by Giulio Bottazzi

Report bugs to <gbutils@googlegroups.com>

Package home page <http://cafim.sssup.it/~giulio/software/gbutils/index.html>

Copyright © 2001-2018 Giulio Bottazzi This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2) as published by the Free Software Foundation;

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

March 2018 | gbkreg2d 5.7.1 |