Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Average, min and max in file with header, using awk
Top Forums Shell Programming and Scripting Average, min and max in file with header, using awk Post 302771302 by kayakj on Wednesday 20th of February 2013 08:33:24 AM
Old 02-20-2013
Average, min and max in file with header, using awk
Hi,
I have a file which looks like this:
Code:
     FID        IID MISS_PHENO   N_MISS   N_GENO   F_MISS
  12AB43131   12AB43131          N    17774   906341  0.01961
  65HJ87451   65HJ87451          N    10149   906341   0.0112
  43JJ21345   43JJ21345          N     2826   906341 0.003118

I would like an awk script that extracts the average, min and max values from the last column. The following code prints the minimum value:
Code:
awk 'min=="" || $6 < min {min=$6} END{print min}' file

Putting > instead of < naturally gives me the header instead. Putting NR>1 gives me the last number of the column, here 0.003118. If I remove the header, it works fine, but I would like to skip that step. The following code, however, works fine for finding the average:
Code:
awk 'NR>1{sum+=$6}END{print "Average missing = ",sum/(NR-1)}' missing_200213.imiss

More info on file: It could be as much as 1 million lines in total. The numbers are usually between 0 and 1, ie lots of decimal numbers. After the header, the column in question is only numeric. There will always be a number, but it might be either 0 or 1.

Thank you!
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Awk search for max and min field values

hi, i have an awk script and I managed to figure out how to search the max value but Im having difficulty in searching for the min field value. BEGIN {FS=","; max=0} NF == 7 {if (max < $6) max = $6;} END { print man, min} where $6 is the column of a field separated by a comma (3 Replies)
Discussion started by: Kirichiko
3 Replies

2. Shell Programming and Scripting

get min, max and average value

hi! i have a file like the attachement. I'd like to get for each line the min, max and average values. (there is 255 values for each line) how can i get that ? i try this, is it right? BEGIN {FS = ","; OFS = ";";max=0;min=0;moy=0;total=0;freq=890} $0 !~ /Trace1:/ { ... (1 Reply)
Discussion started by: riderman
1 Replies

3. Shell Programming and Scripting

Count time min/max/average for ping

I am redirecting my ping output to a file. The sample output is like this: 64 bytes from xx.xx.xx.167: icmp_seq=4490 ttl=116 3.75 ms 2011Jul12- 15 40 16 64 bytes from xx.xx.xx.167: icmp_seq=4491 ttl=116 5.29 ms 2011Jul12- 15 40 17 64 bytes from xx.xx.xx.167: icmp_seq=4492 ttl=116 4.88 ms... (6 Replies)
Discussion started by: zorrox
6 Replies

4. Shell Programming and Scripting

Find min.max value if matching columns found using AWK

Input_ File : 2 3 4 5 1 1 0 1 2 1 -1 1 2 1 3 1 3 1 4 1 6 5 6 6 6 6 6 7 6 7 6 8 5 8 6 7 Desired output : 2 3 4 5 -1 1 4 1 6 5 6 8 5 8 6 7 (3 Replies)
Discussion started by: vasanth.vadalur
3 Replies

5. Shell Programming and Scripting

How to find the average,min,max ,total count?

Hi , Below is my sample data,I have this 8 column(A,B,C,D,E,F,G,H) in csv file. A , B ,C ,D ,E ,F,G ,H 4141,127337,24,15,20,69,72.0,-3 4141,128864,24,15,20,65,66.0,-1 4141,910053,24,15,4,4,5.0,-1 4141,910383,24,15,22,3,4.0,-1 4141,496969,24,15,14,6,-24.0,-18... (7 Replies)
Discussion started by: vinothsekark
7 Replies

6. Shell Programming and Scripting

Number of elements, average value, min & max from a list of numbers using awk

Hi all, I have a list of numbers. I need an awk command to find out the numbers of elements (number of numbers, sort to speak), the average value the min and max value. Reading the list only once, with awk. Any ideas? Thanks! (5 Replies)
Discussion started by: black_fender
5 Replies

7. Shell Programming and Scripting

Get the min avg and max with awk

aaa: 3 ms aaa: 2 ms aaa: 5 ms aaa: 10 ms .......... to get the 3 2 5 10 ...'s min avg and max something like min: 2 ms avg: 5 ms max: 10 ms (2 Replies)
Discussion started by: yanglei_fage
2 Replies

8. Shell Programming and Scripting

awk script to find min and max value

I need to find the max/min of columns 1 and 2 of a 2 column file what contains the special character ">". I know that this will find the max value of column 1. awk 'BEGIN {max = 0} {if ($1>max) max=$1} END {print max}' input.file But what if I needed to ignore special characters in the... (3 Replies)
Discussion started by: ncwxpanther
3 Replies

9. Shell Programming and Scripting

How to get min and max values using awk?

Hi, I need your kind help to get min and max values from file based on value in $5 . File1 SP12.3 stc 2240806 2240808 + ID1_N003 ID2_N003T0 SP12.3 sto 2241682 2241684 + ID1_N003 ID2_N003T0 SP12.3 XE 2239943 2240011 + ID1_N003 ID2_N003T0 SP12.3 XE 2240077 2241254 + ID1_N003 ... (12 Replies)
Discussion started by: redse171
12 Replies

10. Shell Programming and Scripting

awk Sort 2d histogram output from min(X,Y) to max(X,Y)

I've got Gnuplot-format 2D histogram data output which looks as follows. 6.5 -1.25 10.2804 6.5404 -1.25 10.4907 6.58081 -1.25 10.8087 6.62121 -1.25 10.4686 6.66162 -1.25 10.506 6.70202 -1.25 10.3084 6.74242 -1.25 9.68256 6.78283 -1.25 9.41229 6.82323 -1.25 9.43078 6.86364 -1.25 9.62408... (1 Reply)
Discussion started by: chrisjorg
1 Replies

LEARN ABOUT CENTOS

locale::codes::langfam

Locale::Codes::LangFam(3)				User Contributed Perl Documentation				 Locale::Codes::LangFam(3)

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
       constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.16.3							    2013-02-27						 Locale::Codes::LangFam(3)
All times are GMT -4. The time now is 09:27 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy