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Full Discussion: How to compare current record,with next and previous record in awk without using array?
Top Forums Shell Programming and Scripting How to compare current record,with next and previous record in awk without using array? Post 302793899 by Akshay Hegde on Sunday 14th of April 2013 11:17:14 AM
Old 04-14-2013
I think without array it may be little difficult to handle
you could try
Code:
getline and  save column

in some variable and then you can compare

something like this

Code:
awk '{p=$2;getline;c=$2;getline;n=$2;print p,c,n}'

I am not sure about thisSmilie


but with array you may get output as you expected from following code, I assume you might be trying to detect peak values in file, test with your original file and post the same as Jotne suggested Smilie

Code:
                           awk ' FNR==NR{
                                         x=NR
                                         for(i=1;i<=NF;i++)
                                         D[x,i]=$i;next
                                        }

                                    END{
                                           for(j=1;j<=x;j++)
                                           if(j!=1)
                                           if(D[j,1]>D[j-1,1] && D[j-1,2]+3 < D[j,2] && D[j,2] > D[j+1,2]+3 || \
                                           D[j-1,2]-3 > D[j,2] && D[j,2] < D[j+1,2]-3)
           
                                                           print D[j,1],D[j,2],"BAD"
                                           else 
                                                           print D[j,1],D[j,2]
                                        }' your file

output
Code:
admin@IEEE:~$ sh test.sh 
1 26
2 27
3 34 BAD
4 26
5 25
6 24
9 23
0 32
1 28
2 15 BAD
3 26
4 24
5 25

Last edited by Akshay Hegde; 04-14-2013 at 12:28 PM..
 

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LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_ALPHA".

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_NUMERIC".

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

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

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

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

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
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