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Top Forums Shell Programming and Scripting Requesting an AWK code to generate averaged rows in a column Post 302191537 by solracq on Friday 2nd of May 2008 08:05:21 PM
Old 05-02-2008
Clarification of my request (with my real input file)

Quote:
Originally Posted by Franklin52
You show an example with 2 rows and n columns, do you want the average of 3 rows (= lines) or 3 columns?
It should be easier if you provide the exact format of the input and the desired output.
hi, I require the average of every three rows or lines in a column, $2. And I need to replace the result with the same three values, rows, I calulated the average. In other words...

Input file (the one i'm using, the "......" means a space line):
$1........$2
10......1348480
11......1364490
12......1347840
13......1414400
14.......1364480
15.......1331200

The output shuld be :
$1........$2
10......1353603.3
11......1353603.3
12......1353603.3 ------------->Average of the first three lines of $2
13......1370026.6
14.......1370026.6
15.......1370026.6------------->Average of the following three lines of $2

the calculation ends till the final record according to the input (approx. 200 records)

I think this makes more clear what I need...

thanks again for you nice help!

Solracq
 

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COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME
column -- columnate lists SYNOPSIS
column [-tx] [-c columns] [-s sep] [file ...] DESCRIPTION
The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by default, from the standard input. Empty lines are ignored. The options are as follows: -c Output is formatted for a display columns wide. -s Specify a set of characters to be used to delimit columns for the -t option. -t Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with the characters supplied using the -s option. Useful for pretty-printing displays. -x Fill columns before filling rows. column exits 0 on success, >0 if an error occurred. ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available. EXAMPLES
(echo "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME"; ls -l | sed 1d) | column -t SEE ALSO
colrm(1), ls(1), paste(1), sort(1) HISTORY
The column command appeared in 4.3BSD-Reno. BSD
March 9, 2008 BSD
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