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Full Discussion: Adding the individual columns of a matrix.
Top Forums Shell Programming and Scripting Adding the individual columns of a matrix. Post 302520778 by drl on Monday 9th of May 2011 07:23:25 AM
Old 05-09-2011
Hi.

An available utility, numsum, part of num-utils:
Code:
#!/usr/bin/env bash

# @(#) s1	Demonstrate use of numsum.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
pe() { for i;do printf "%s" "$i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for i;do printf "%s" "$i";done; printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && . $C 

FILE=${1-data1}

pl " Data file $FILE:"
cat $FILE

pl " Results with numsum:"
/usr/bin/numsum -c $FILE

exit 0

producing:
Code:
% ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian GNU/Linux 5.0.7 (lenny) 
GNU bash 3.2.39

-----
 Data file data1:
1 2 3
4 5 6
7 8 9
3 4 5

-----
 Results with numsum:
15 19 23

Information about numsum ( package available in the Debian repositories ):
Code:
COPYRIGHT
       numsum is part of the num-utils package, which is copyrighted by Suso
       Banderas and released under the GPL license.  Please read the COPYING
       and LICENSE files that came with the num-utils package

         Developers can read the GOALS file and contact me about providing
       submitions or help for the project.

MORE INFO
       More info on numsum can be found at:

       http://suso.suso.org/programs/num-utils/

-- excerpt from man numsum

Best wishes ... cheers, drl
These 3 Users Gave Thanks to drl For This Post:
lovelinux shoaibjameel123 usha rao
 

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LEARN ABOUT DEBIAN

numround

NUMROUND(1)						User Contributed Perl Documentation					       NUMROUND(1)

NAME

       numround - A program that rounds off numbers it encounters.

SYNOPSIS

       numround [-cdfhV] <FILE>

       | numround [-cdfhV]   (Input on STDIN from pipeline.)

       numround [-cdfhV]     (Input on STDIN.  Use Ctrl-D to stop.)

DESCRIPTION

       numround will simply round decimal numbers to the nearest integer or to a factor of any number using the -n option.  You can also force it
       to round up (ceiling) or round down(floor) using the -c and -f options.

OPTIONS

	   -c	   Force the number to be rounded up. Ceiling.
	   -f	   Force the number to be rounded down. Floor.
	   -n <n>  Round numbers to the nearest factor of <n>.

	   -h	   Print out some helpful information about numround.
	   -V	   Increase verbosity.	This will print out numbers as it finds them.
	   -d	   Debug mode.	For developers only.

BUGS

       numround currently only rounds the first number on each line.  Eventually this will be changed as all the numeric utilities are developed.

       numround will drop off the decimal places in decimal numbers.  This may cause some calculations to be in error, depending on how you are
       using the data.

SEE ALSO

       numaverage(1), numbound(1), numinterval(1), numnormalize(1), numgrep(1), numprocess(1), numsum(1), numrandom(1), numrange(1)

COPYRIGHT

       numround is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license.  Please read the
       COPYING and LICENSE files that came with the num-utils package

	 Developers can read the GOALS file and contact me about providing
       submitions or help for the project.

MORE INFO

       More info on numround can be found at:

       http://suso.suso.org/programs/num-utils/

perl v5.10.1							    2009-10-31							       NUMROUND(1)
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