GSL-HISTOGRAM(1) General Commands Manual GSL-HISTOGRAM(1)

# [NAME](#NAME)

gsl-histogram - compute histogram of data on stdin

# [SYNOPSYS](#SYNOPSYS)

**gsl-histogram xmin xmax \[n]**

# [DESCRIPTION](#DESCRIPTION)

**gsl-histogram** is a demonstration program for the GNU Scientific Library. It takes three arguments, specifying the upper and lower bounds of the histogram and the number of bins. It then reads numbers from \`stdin', one line at a time, and adds them to the histogram. When there is no more data to read it prints out the accumulated histogram using gsl\_histogram\_fprintf. If n is unspecified then bins of integer width are used.

# [EXAMPLE](#EXAMPLE)

Here is an example. We generate 10000 random samples from a Cauchy distribution with a width of 30 and histogram them over the range -100 to 100, using 200 bins.

gsl-randist 0 10000 cauchy 30 | gsl-histogram -100 100 200 > histogram.dat

A plot of the resulting histogram will show the familiar shape of the Cauchy distribution with fluctuations caused by the finite sample size.

awk '{print $1, $3 ; print $2, $3}' histogram.dat | graph -T X

# [SEE ALSO](#SEE_ALSO)

[**gsl(3)**](/man/os/gsl/gsl.3), [**gsl-randist(1)**](/man/os/gsl/gsl-randist.1).

# [AUTHOR](#AUTHOR)

**gsl-histogram** was written by Brian Gough. Copyright 1996-2000; for copying conditions see the GNU General Public Licence.

This manual page was added by the Dirk Eddelbuettel <edd@debian.org>, the Debian GNU/Linux maintainer for **GSL**.

GNU

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Document: gsl-histogram(1) from gsl 2.8-r11 (Chainguard OS)
Source: https://git.savannah.gnu.org/git/gsl.git