Man page - gbnlmult(1)

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Manual

GBNLMULT(1) User Commands GBNLMULT(1)

gbnlmult - Solve systems of non linear simultaneous equations

gbnlmult [options] <function definition>

Least square estimation of a system of j non linear equations. Read data in columns (X_1 .. X_N). The j-th equation is specified by a function f_j(x1,x2...) using variables names x1,x2,..,xN for the first, second...N-th column of data. The f_j(x1,x2,...)'s are assumed i.i.d. according to a multivariate gaussian distribution.

type of output (default 0)
0
parameters
1
parameters and errors
2
<variables> and residuals
3
parameters and variance matrix
variance matrix estimation (default 0)
0 <gradF gradF^t> 1 < J^{-1} > 2 < H^{-1} > 3 < H^{-1} J H^{-1} >
minimization tolerance (default 1e-5)
verbosity level (default 0)
0
just results
1
comment headers
2
summary statistics
3
covariance matrix
4
minimization steps
5
model definition
input fields separators (default " \t")
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.

June 2021 gbnlmult 6.2