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Top Forums UNIX for Dummies Questions & Answers Taking a average of a column of numbers Post 302589872 by jayan_jay on Friday 13th of January 2012 12:37:33 AM
Old 01-13-2012
Expecting this ..
Code:
$ sed -n "/${start}$/,/${end}$/p" infile | nawk '{sum+=$0}END{print sum/NR}'

While in next post, please show us what you have tried .. Because time is precious for everyone .. Smilie Smilie
This User Gave Thanks to jayan_jay For This Post:
 

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Sum(3pm)						  LogReport's Lire Documentation						  Sum(3pm)

NAME
Lire::Sum - Lire class that implements the sum operator SYNOPSIS
use Lire::Sum DESCRIPTION
Class that implements the sum operator. This operator will compute the field's sum in a group of DLF records. It's possible to compute a weighted sum in which each value is first multiplied by the value of another DLF field. Its also possible to express the count as a ratio of the total count for the group or table. METHODS
new( %params ) Creates a new Lire::Count object. In addition to the values supported by its parents, the weight and ratio attributes will be initialized to the values specified in the %params argument. weight( [$new_weight] ) Returns the DLF field's name by which the values will be multiplied before being summed. You can change the weight field by specifying a new name as the $new_weight parameter. Use undef to remove the use of a weighting field. ratio([$new_ratio]) Returns how the sum will be expressed. This can one of three possible values: none Default. The absolute sum will be used. group The sum will be expressed as a percentage of the group's sum. table The sum will be expressed as a percentage of the table's total sum. SEE ALSO
zLire::ReportSpec(3pm), Lire::ReportOperator(3pm), Lire::Aggregator(3pm), Lire::Aggregate(3pm). AUTHOR
Francis J. Lacoste <flacoste@logreport.org> VERSION
$Id: Sum.pm,v 1.17 2008/03/09 19:27:31 vanbaal Exp $ COPYRIGHT
Copyright (C) 2001, 2002 Stichting LogReport Foundation LogReport@LogReport.org This file is part of Lire. Lire is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with http://www.gnu.org/copyleft/gpl.html. Lire 2.1.1 2008-03-09 Sum(3pm)
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