Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: "Smoothing" the data
Top Forums UNIX for Dummies Questions & Answers "Smoothing" the data Post 302596532 by Corona688 on Tuesday 7th of February 2012 05:22:36 PM
Old 02-07-2012
Surely there's a way to do that with awk. awk doesn't have a single function for it of course, since it doesn't make much sense to do a boxcar average on a single line...

Let me see if I have the algorithm right. For these points:

Code:
1
5
2
6
3
7
4
8
5
9

for a boxcar average of width 3, would you want:

Code:
(1+5+2)/3, (5+2+6)/3, (2+6+3)/3, (6+3+7)/3, (3+7+4)/3, (7+4+8)/3, (4+5+5)/3, (8+5+9)/3

---------- Post updated at 04:22 PM ---------- Previous update was at 04:10 PM ----------

Code:
$ cat data
1
5
2
6
3
7
4
8
5
9

$ cat smooth.awk

BEGIN { WIDTH=3 }

{       DATA[(++N)%WIDTH]=$1    }

(N>=WIDTH) {
        V=0
        for(X=(N+1); X<=(N+WIDTH); X++)
                V+=DATA[X%WIDTH];

        print V/WIDTH;
}

$ awk -f smooth.awk data
2.66667
4.33333
3.66667
5.33333
4.66667
6.33333
5.66667
7.33333
4.66667

$

Last edited by Corona688; 02-07-2012 at 06:20 PM..
This User Gave Thanks to Corona688 For This Post:
cosmologist
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies

2. Shell Programming and Scripting

cat $como_file | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g'

hi All, cat file_name | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g' Can this be done by using sed or awk alone (4 Replies)
Discussion started by: harshakusam
4 Replies

3. Shell Programming and Scripting

ps -ef | grep "string1" "string2" " "string3"

Hi all, can any one suggest me the script to grep multiple strings from ps -ef pls correct the below script . its not working/ i want to print OK if all the below process are running in my solaris system. else i want to print NOT OK. bash-3.00$ ps -ef | grep blu lscpusr 48 42 ... (11 Replies)
Discussion started by: steve2216
11 Replies

4. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

5. Shell Programming and Scripting

how to use "cut" or "awk" or "sed" to remove a string

logs: "/home/abc/public_html/index.php" "/home/abc/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" "/home/xyz/public_html/index.php" how to use "cut" or "awk" or "sed" to get the following result: abc abc xyz xyz xyz (8 Replies)
Discussion started by: timmywong
8 Replies

6. Solaris

The slices "usr", "opt", "tmp" disappeared!!! Help please.

The system don't boot. on the screen appears following: press enter to maintenance (or type CTRL-D to continue)...I checked with format command. ... the slices "0-root","1-swap","2-backup" exist. ...the slises "3-var","6-usr" -unassigned. :( (16 Replies)
Discussion started by: wolfgang
16 Replies

7. UNIX for Dummies Questions & Answers

Using "mailx" command to read "to" and "cc" email addreses from input file

How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address and column 3 contains “cc” e-mail address to include with same email. Sample input file, email.txt Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies

8. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies

9. AIX

Apache 2.4 directory cannot display "Last modified" "Size" "Description"

Hi 2 all, i have had AIX 7.2 :/# /usr/IBMAHS/bin/apachectl -v Server version: Apache/2.4.12 (Unix) Server built: May 25 2015 04:58:27 :/#:/# /usr/IBMAHS/bin/apachectl -M Loaded Modules: core_module (static) so_module (static) http_module (static) mpm_worker_module (static) ... (3 Replies)
Discussion started by: penchev
3 Replies

LEARN ABOUT CENTOS

fmt

FMT(1)								   User Commands							    FMT(1)

NAME

       fmt - simple optimal text formatter

SYNOPSIS

       fmt [-WIDTH] [OPTION]... [FILE]...

DESCRIPTION

       Reformat each paragraph in the FILE(s), writing to standard output.  The option -WIDTH is an abbreviated form of --width=DIGITS.

       Mandatory arguments to long options are mandatory for short options too.

       -c, --crown-margin
	      preserve indentation of first two lines

       -p, --prefix=STRING
	      reformat only lines beginning with STRING, reattaching the prefix to reformatted lines

       -s, --split-only
	      split long lines, but do not refill

       -t, --tagged-paragraph
	      indentation of first line different from second

       -u, --uniform-spacing
	      one space between words, two after sentences

       -w, --width=WIDTH
	      maximum line width (default of 75 columns)

       -g, --goal=WIDTH
	      goal width (default of 93% of width)

       --help display this help and exit

       --version
	      output version information and exit

       With no FILE, or when FILE is -, read standard input.

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report fmt translation bugs to <http://translationproject.org/team/>

AUTHOR

       Written by Ross Paterson.

COPYRIGHT

       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The  full  documentation  for fmt is maintained as a Texinfo manual.  If the info and fmt programs are properly installed at your site, the
       command

	      info coreutils 'fmt invocation'

       should give you access to the complete manual.

GNU coreutils 8.22						     June 2014								    FMT(1)
All times are GMT -4. The time now is 06:23 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy