GSL-HISTOGRAM(1) User Commands GSL-HISTOGRAM(1)

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.

GNU GSL-HISTOGRAM(1)