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stda(1) [debian man page]

STDA(1) 							   User Commands							   STDA(1)

NAME

       stda -  Simple Tools for Data Analysis (STDA)

DESCRIPTION

       STDA includes some primary tools for data analysis. You can evaluate sums, averages, integrals, derivatives, histograms or probability dis-
       tribution functions of 1-d data, and eventually plot the results. The programs are stand-alone tools (supporting the  standard  UNIX  input
       and  output  pipelines)	intended for data processing from the command line. It should be noted that all but one of the scripts use awk and
       core system utilities. For plotting you have to install Gnuplot (see http://gnuplot.info) since 'muplot' is a wrapper around  it.  In  sum-
       mary,  the  package  provides  utilities  for straightforward analysis of data series where a complex analytical approach is not needed and
       where an ultimate numerical precision with floating-point numbers is not critical. Some general examples of application cases include eval-
       uating usage statistics from server logfiles, determining a response time distribution from a series of queries to a [remote] service, pro-
       ducing a plot from multiple data files, etc.

       This software should be considered as an open project to be extended with new command-line driven utilities helpful for	performing  common
       data analysis tasks. Any contributions and suggestions are welcome.

       Following programs are included in the distribution:

       * maphimbu   - histogram builder for 1-d numerical and text data

       * mintegrate - average/sum/integral/derivative of 1-d numerical data

       * mmval	    - find minimum and maximum value in a data set

       * muplot     - plot a multi-curve figure from multiple data by using Gnuplot

       * nnum	    - produce a series of equally separated integers or floats

       * prefield   - prepare input file for 'muplot' to plot 2-d fields by arrows

EXAMPLES

       -  Evaluate  the current apache2 logfile and make an unique list of the hostnames (respectively ip-addresses) sorted by the total number of
       their http requests:

	      maphimbu -rs2 /var/log/apache2/access.log

       - On a X terminal plot the probability function and the cumulative distribution function of a sin(x) data sample:

	      nnum -3.14159 3.14159 0.00001 %.6g |awk '{ print $1, sin($1) }'  | maphimbu -d0.01 -x2 -ns1 |mintegrate -d0.01 -x1 -y3  -S  |muplot
	      lp - 1:3,4

COPYRIGHT

       Copyright (C) 2009, 2011-2012 Dimitar Ivanov <dimitar.ivanov@mirendom.net>

       License: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

stda 1.1.1							   February 2012							   STDA(1)

Check Out this Related Man Page

BNO_PLOT(1)															       BNO_PLOT(1)

NAME

       bno_plot - generate interactive 3D plot of IO blocks and sizes

SYNOPSIS

       bno_plot [ -h | --help ]
		[ -v | --verbose ]
		[ -K | --keys-below ]
		[ <file...> ]

DESCRIPTION

       bno_plot  is  a	visualization  tool  for the block layer IO tracing tool called blktrace(8).  As noted in its documentation, blktrace is a
       block layer IO tracing mechanism which provides detailed information about request queue operations up to user space.

       bno_plot utilizes gnuplot to generate a 3D plot of the block number output from btt.  If no <files> are	specified,  it	will  utilize  all
       files generated after btt was run with -B blknos (meaning: all files of the form blknos*[rw].dat).

       The -K option forces bno_plot to put the keys below the graph.  If it is not specified, all keys for input files are put in the upper right
       corner of the graph. If the number of devices exceed 10, then bno_plot will automatically push the keys under the graph.

       To use this utility, the gnuplot package needs to be installed.

       To exit the plotter, enter 'quit' or ^D at the 'gnuplot> ' prompt.

AUTHORS

       bno_plot was written by Alan D. Brunelle.  This man page was created from the blktrace documentation by Bas Zoetekouw.

REPORTING BUGS

       Report bugs to <linux-btrace@vger.kernel.org>

COPYRIGHT

       Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
       This  is  free  software.   You	 may   redistribute   copies   of   it	 under	 the   terms   of   the   GNU	General   Public   License
       <http://www.gnu.org/licenses/gpl.html>.	There is NO WARRANTY, to the extent permitted by law.
       This  manual  page  was	created  for Debian by Bas Zoetekouw.  It was derived from the documentation provided by the authors and it may be
       used, distributed and modified under the terms of the GNU General Public License, version 2.
       On Debian systems, the text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-2.

SEE ALSO

       btt (1), gnuplot (1), blktrace (8), blkparse (1), verify_blkparse (1), blkrawverify (1)

blktrace git-20080213182518					 February 22, 2007						       BNO_PLOT(1)
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