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

# gbalafit(1)

Fit an asymmetric Laplace density

## NAME

gbalafit - Fit an asymmetric Laplace density

## SYNOPSIS

**gbalafit** \[*options*\] \[*files*\]

## DESCRIPTION

Fit asymmetric Laplace density. Read data from files or from standard input With output option '4' prints the log-likelihood as a function of m

input.

-

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

- 0

  parameters m al ar and negative log-likelihood

- 1

  the estimated distribution function computed on the provided points

- 2

  the estimated density function computed on the provided points

- 3

  parameters m,al,ar their standard errors and correlations

- 4

  log-likelihood profile

- **-m**

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

- **-x**

  initial value of m or plot range if output type is '4' (default 0)

- **-n**

  number of plotted points if output type is '4' (default 10)

- **-V**

  verbosity level (default 0)

- 0

  just the final result

- 1

  headings and summary table

- 2

  intermediate steps results

## EXAMPLES

- gbalafit -m 1 \<file

  estimate al and ar with m=1

- gbalafit -O 4 -x -1,1 \<file

  print the log-likelihood on a regular grid from -1 to 1. The grid has 10 points.

## 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.