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

# gblafit(1)

Fit a Laplace density

## NAME

gblafit - Fit a Laplace density

## SYNOPSIS

**gblafit** \[*options*\] \[*files*\]

## DESCRIPTION

Fit 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 a 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, a and 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)

## EXAMPLES

- gblafit -m 1 \<file

  estimate a with m=1

- gblafit -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.