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Top Forums Shell Programming and Scripting Summing columns over group of lines Post 302798305 by sdp on Wednesday 24th of April 2013 07:38:16 AM
Old 04-24-2013
Linux Summing columns over group of lines

I have an input file that looks like:
Code:
ID1 V1 ID2 V2 P1 P2 P3 P4 ..... n no. of columns
1 1 1 1 1.0000 1.0000 1.0000 1.0000
1 1 1 2 0.9999 0.8888 0.7777 0.6666
1 2 1 1 0.8888 0.7777 0.6666 0.5555
1 2 1 2 0.7777 0.6666 0.5555 0.4444
2 1 1 1 0.6666 0.5555 0.4444 0.3333
2 1 1 2 0.5555 0.4444 0.3333 0.2222
2 2 1 1 0.4444 0.3333 0.2222 0.1111
2 2 1 2 0.3333 0.2222 0.1111 0.1234

I would like to pick each field from column 5 i.e. P1 over each group of four lines and add them. The output needs to look like
Code:
ID1 ID2 P1 P2 P3 P4 .....n columns
1 1 3.6664 3.3331 ...... so on
2 1 1.9998 1.5554 ....... so on

Is there a way to do this using awk scripts ???

Last edited by vbe; 04-24-2013 at 08:40 AM.. Reason: please use code for your code and data Thanks
 

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PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. Please notice this option isn't related to the terminal length as in a "80 culums terminal". --font=desc Set the font description. Default is Monospace 12. --rtl Do right to left (RTL) layout. --paper ps Choose paper size. Known paper sizes are legal, letter and A4. Default is A4. Postscript points Each postscript point equals to 1/72 of an inch. 36 points are 1/2 of an inch. --bottom-margin=bm Set bottom margin. Default is 36 postscript points. --top-margin=tm Set top margin. Default is 36 postscript points. --left-margin=lm Set left margin. Default is 36 postscript points. --right-margin=rm Set right margin. Default is 36 postscript points. --gutter-width=gw Set gutter width. Default is 40 postscript points. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
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