NAME
gsl-histogram - compute histogram of data on stdin
SYNOPSYS
gsl-histogram xmin xmax [n]
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
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
gsl(3), gsl-randist(1).
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.