---
name: "gblaepfit"
section: "1"
platform: "linux"
package: "gbutils"
version: "6.3-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gblaepfit"
---

# gblaepfit(1)

Fit a less asymmetric power exponential density

## NAME

gblaepfit - Fit a less asymmetric power exponential density

## SYNOPSIS

**gblaepfit** \[*options*\] \[*files*\]

## DESCRIPTION

Fit skewed power exponential density. Read from files or from standard input

-

  Options: **-O**  output type (default 0)

- 0

  parameter bl br a m and log-likelihood

- 1

  the estimated distribution function computed on the provided points

- 2

  the estimated density function computed on the provided points

- **-x**

  set initial conditions bl,br,a,m  (default 2,2,1,1,0)

- **-m**

  the mode is not estimated but is set to the value provided

- **-s**

  number of intervals to explore at each iteration (default 10)

- **-V**

  verbosity level (default 0)

- 0

  just the final result

- 1

  intermediate steps results

- 2

  intermediate steps internals

- 3+

  details of optim. routine

- **-M**

  active estimation steps. The value is the sum of (default 1)

- 0

  no optimization

- 1

  global and local optimization

- **-G**

  set global optimization options. Fields are step,tol,iter,eps,msize,algo. Empty field implies default (default .1,1e-2,100,1e-3,1e-5,2)

- **-I**

  set local optimization options. Fields are step,tol,iter,eps,msize,algo. Empty field implies default (default .01,1e-3,200,1e-3,1e-5,2)

The optimization parameters are step  initial step size of the searching algorithm

- tol

  line search tolerance iter: maximum number of iterations

- eps

  gradient tolerance : stopping criteria \|\|gradient\|\|\<eps

- msize

  simplex max size : stopping criteria \|\|max edge\|\|\<msize

- algo

  optimization methods: 0 Fletcher-Reeves, 1 Polak-Ribiere, 2 Broyden-Fletcher-Goldfarb-Shanno, 3 Steepest descent, 4 Nelder-Mead simplex, 5 Broyden-Fletcher-Goldfarb-Shanno ver.2 6 Nelder-Mead simplex ver. 2, 7 Nelder-Mead simplex rnd init.

## EXAMPLES

- gblaepfit -m 1 \<file

  estimate bl,br,a with m=1

## AUTHOR

Written by Giulio Bottazzi

## REPORTING BUGS

Report bugs to \<gbutils@googlegroups.com\>

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

## COPYRIGHT

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.