

 
Manual Reference Pages  GSLHISTOGRAM (1)
NAME
gslhistogram  compute histogram of data on stdin
CONTENTS
Synopsys
Description
Example
See Also
Author
SYNOPSYS
gslhistogram xmin xmax [n]
DESCRIPTION
gslhistogram 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.
gslrandist 0 10000 cauchy 30  gslhistogram 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) ,
gslrandist(1) .
AUTHOR
gslhistogram was written by Brian Gough.
Copyright 19962000; 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.
Visit the GSP FreeBSD Man Page Interface. Output converted with manServer 1.07. 