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VersionsGSL-HISTOGRAM(1) General Commands Manual 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 his‐
togram 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)
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 his‐
togram 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)