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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

numrange

NUMRANGE(1)						User Contributed Perl Documentation					       NUMRANGE(1)

NAME

       numrange - Print out a range of numbers for use in for loops and such.

SYNOPSIS

       numrange [-dhV] /<expression>/

DESCRIPTION

       numrange will print out a list of numbers based on an expression that you specify.  This is useful for making a list of numbers for use in
       for loops and so on.  Ranges are inclusive.  Ranges of numbers are specified using the .. operator, like this /20..50/, which means all
       integers from 20 to 50 inclusive.  More complex expressions can be generated using the commas and the 'i' increment operator.

OPTIONS

	   -e <set> Exclude the <set> of numbers from the range output.  <set>
	      is a set of numbers separated by commas.
	   -n <n> Use <n> as the separator between numbers.  By default, it
	      will use a space.  Use '
' or \n for a newline character or
	      use the -N option.
	   -N  Just a quick option for using a newline as the separator.

	   -h  Help: You're looking at it.
	   -V  Increase verbosity.
	   -d  Debug mode.  For developers

EXAMPLES

	  All numbers from 1 to 10.
	   $ numrange /1..10/
	   1 2 3 4 5 6 7 8 9 10

	  From 10 to 1. Counting down.
	   $ numrange /10..1/
	   10 9 8 7 6 5 4 3 2 1

	  From 1 to 10 and from 15 to 20.
	   $ numrange /1..10,15..20/
	   1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20

	  Even numbers from 0 to 10
	   $ numrange /0..10i2/
	   0 2 4 6 8 10

	  Odd numbers.	Notice the starting number in the range expression.
	   $ numrange /1..10i2/
	   1 3 5 7 9

	  Factors of 3 between 99 and 120.
	   $ numrange /99..120i3/
	   99 102 105 108 111 114 117 120

	  Decimal numbers
	   $ numrange /1.1..2.5i0.1/
	   1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5

	  And negative numbers too.
	   $ numrange /1.0..-2.0i0.3/
	   1 0.7 0.4 0.1 -0.2 -0.5 -0.8 -1.1 -1.4 -1.7 -2

	  You can also pad numbers when you are counting up.  This is
	  a trick of how the Perl programming language deals with ranges:

	   $ numrange /01..15/
	   01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

BUGS

       Even though you can do zero padding on simple ranges, like 001..100, it will not pad zeros on complex ranges like 001..100i2, or for
       counting downwards.

SEE ALSO

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

COPYRIGHT

       numrange 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 numrange can be found at:

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

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