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Full Discussion: Compare within same group
Top Forums UNIX for Dummies Questions & Answers Compare within same group Post 302921315 by RavinderSingh13 on Thursday 16th of October 2014 10:35:51 AM
Old 10-16-2014
Quote:
Originally Posted by senhia83
Hi Ravinder,
I tested your code with the following dataset
Code:
 
$ cat test3
name2 id1group1 value1
name4 id1group1 value2
name1 id2group1 value2
name2 id2group1 value2
name4 id2group1 value2
name1 id1group2 value1
name2 id1group2 value2

What I am getting
Code:
 
name4 id1group1 missing
name1 id2group1 value2
name2 id1group2 missing

The first column is not correct.
What I should get

Code:
 
name2 id1group1 missing
name1 id2group1 value2
name1 id1group2 missing

Aia, your perl scripts works great, can it be modified slightly to use tab delimited input file?
Hello senhia83,

kindly try following code, I have tesed it with your input file as well as with my teste input file too, hope this helps, will be happy if this works for you.

Input file1:
Code:
cat group_test1
name2 id1group1 value1
name4 id1group1 value2
name1 id2group1 value2
name2 id2group1 value2
name4 id2group1 value2
name1 id1group2 value1
name2 id1group2 value2

Code as follows:
Code:
awk 'NR==1{X=$2;S[$2]=$0;} {if( X != $2 ){if(!S[$2]){S[$2]=$0;}}} {if( X == $2){if( Y != $3 ){split(S[$2],D," ");D[3]="missing";S[$2]=D[1] OFS D[2] OFS D[3];}}} {X=$2;Y=$3} END{for(u in S){print S}}' group_test1

Output will be as follows.
Code:
name1 id2group1 value2
name2 id1group1 missing
name1 id1group2 missing

Now with my previous test file results as follows:
Input file2:
Code:
cat group_test
name2 group1 value1
name1 group2 value1
name4 group1 value2
name2 group3 value2
name3 group3 value2
name2 group2 value2
name3 group2 value1
name1 group4 value1
name2 group4 value1
name1 group4 value1
name4 group4 value2
name2 group5 value2
name3 group5 value2
name2 group5 value2
name3 group5 value1
name3 group6 value1
name3 group6 value1

Code is as follows.
Code:
awk 'NR==1{X=$2;S[$2]=$0;} {if( X != $2 ){if(!S[$2]){S[$2]=$0;}}} {if( X == $2){if( Y != $3 ){split(S[$2],D," ");D[3]="missing";S[$2]=D[1] OFS D[2] OFS D[3];}}} {X=$2;Y=$3} END{for(u in S){print S}}' group_test

Output is as follows.
Code:
name2 group1 missing
name1 group2 missing
name2 group3 value2
name1 group4 missing
name2 group5 missing
name3 group6 value1

EDIT: Adding a non one liner form of solution too.
Code:
awk 'NR==1{
X=$2;S[$2]=$0;
}
        {if( X != $2 )
                {if(!S[$2])
                        {S[$2]=$0;}
                }
        }
{if( X == $2)
        {if( Y != $3 )
                {split(S[$2],D," ");
                D[3]="missing";S[$2]=D[1] OFS D[2] OFS D[3];
                }
        }
}
{X=$2;Y=$3}
END{
{for(u in S){print S[u]}}
}' group_test  ## Your input file name ##

Thanks,
R. Singh
Last edited by RavinderSingh13; 10-16-2014 at 11:53 AM.. Reason: Added a non one liner form of solution
This User Gave Thanks to RavinderSingh13 For This Post:
senhia83
 

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