gbker2d.1 1.93 KB
Newer Older
1 2
.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.44.1.
.TH GBKER2D "1" "June 2015" "gbker2d 5.6.5" "User Commands"
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
.SH NAME
gbker2d \- Kernel density estimate for bivariate data
.SH SYNOPSIS
.B gbker2d
[\fIoptions\fR]
.SH DESCRIPTION
2D kernel density estimation on an equispaced grid. Data are read from standard
input as couple (x,y). The kernel bandwidth if not provided with the option \fB\-H\fR
is set automatically. Different bandwidths can be specified for x and y.
.SH OPTIONS
.TP
\fB\-n\fR
number of points where the density is computed (default 10) use comma (,)
to specify different values for x and y components
.TP
\fB\-H\fR
19
set the kernel bandwidth explicitly; use comma (,) to specify different
20 21 22
values for x and y components
.TP
\fB\-S\fR
23
scale the kernel bandwidth with respect to euristic 'optimal' value; use
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
comma (,) to specify different values for x and y components
.TP
\fB\-K\fR
choose the kernel to use: 0: Epanenchnikov 1: Rectangular 2: Silverman
type 1 3: Silverman type 2 (default 0)
.TP
\fB\-D\fR
switch off data de\-variation procedure
.TP
\fB\-v\fR
verbose mode
.TP
\fB\-F\fR
specify the input fields separators (default " \et")
.TP
\fB\-h\fR
this help
.SH EXAMPLES
.TP
gbker2d \-n 10,20 \-K 1 < file
compute the kernel on an equispaced grid 10x20
using a rectangular kernel
.SH AUTHOR
Written by Giulio Bottazzi
.SH "REPORTING BUGS"
Report bugs to <gbutils@googlegroups.com>
.PP
.br
Package home page <http://cafim.sssup.it/~giulio/software/gbutils/index.html>
.SH COPYRIGHT
54
Copyright \(co 2001\-2015 Giulio Bottazzi
55 56 57 58 59 60 61 62
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;
.PP
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.