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Full Discussion: Counting non empty fields and calculating with that number
Top Forums Shell Programming and Scripting Counting non empty fields and calculating with that number Post 302417024 by DerSeb on Wednesday 28th of April 2010 10:18:48 AM
Old 04-28-2010
Counting non empty fields and calculating with that number
Hello all,

I have a problem with a skript of mine:

My input has the following format

Code:
1,33296 transcript_id"ENSRNOT00000018629"  0 1,33296 0
0 transcript_id"ENSRNOT00000029014"  0
0,907392 transcript_id"ENSRNOT00000016905"  0,907392
0 transcript_id"ENSRNOT00000053370"  0
0 transcript_id"ENSRNOT00000038480"  0 0 0 0 0 0 0 0 0
0 transcript_id"ENSRNOT00000019722"  0 0 0
11,4615 transcript_id"ENSRNOT00000002187"  1,40701 1,13791 1,22749 1,22412 1,57927 1,29104 1,02167 1,41525 1,15769

The first field is the sum of all fields after the $2. Now I want to add a field upfront that is the sum ($1) divided by the number of all fields that are not zero.

This is what I came up with until now:

Code:
awk 'BEGIN {cnt=0; for(i=3;i<=NF;i++) {if ($i != 0) {cnt++}}; if (cnt != 0) {print $1/cnt, $0} else {print 0,$0} }'

However, this does not work. I ran into the problem dividing by zero, so I included a second if statement. I don't know if this is allowed, though.

Best,
Seb

---------- Post updated at 09:18 AM ---------- Previous update was at 09:13 AM ----------

Just found the solution: Leave the "BEGIN" out and it works ;D

still a beginner!
 

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LEARN ABOUT OSX

locale::codes::langfam

Locale::Codes::LangFam(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangFam(3pm)

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) 2011-2012 Sullivan Beck

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

perl v5.16.2							    2012-10-11					       Locale::Codes::LangFam(3pm)
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