Splitting data from one row as multiple columns


 
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# 1  
Old 11-18-2010
Splitting data from one row as multiple columns

Hi

I have a file containing some data as follows:
HTML Code:
11-17-2010:13:26     64    4  516414 1392258  
11-17-2010:13:26     128   4  586868  695603  
11-17-2010:13:26     256   4  474937 1642294  

11-17-2010:13:32     64    4  378715 1357066  
11-17-2010:13:32     128   4  597981 1684006  
11-17-2010:13:32     256   4  468922 1673001  

11-17-2010:13:36     64    4  367817 1553394  
11-17-2010:13:36     128   4  579270 1526043  
11-17-2010:13:36     256   4  474098 1629830  

11-17-2010:13:37     64    4  383585 1492919  
11-17-2010:13:37     256   4  599585 1036624  
I need to use awk to print out the values in column 4 as separate columns for each distict value in column 1 as follows:
HTML Code:
516414  378715 367817 383585
586868  597981 579270 599585
474937  468922 474098
I tried to store the distinct values of column1 in a variable and use that in a loop to store the values in an array to be printed later, but I seem to be doing something majorly wrong.
HTML Code:
a=`awk '{print $1}' 4.txt | sort -u`
j=0
for i in ${a[@]}
do 
j=`expr $j + 1`
val[j]=`awk -v dat=\`echo $i\` '$1=i {print $4}' data.txt`; echo $j
done
Can someone help me?
Thanks
# 2  
Old 11-18-2010
Code:
awk '{print$4}' infile | egrep -ve '^[:blank:]*$' | xargs -n4 echo

# 3  
Old 11-18-2010
Thanks for the quick reply Cstgnb. I guess I was not too clear in what I needed. The script you provided converts the desired output column to a row. So instead of getting:
516414 378715 367817 383585
586868 597981 579270 599585
474937 468922 474098
I get:

HTML Code:
516414 586868 474937 378715
597981 468922 367817 579270
474098 383585 402510 599585
385237 601330 484801 374488
574312 481109 392561 584313
Also I cannot use 'xargs -n4' as I need to print out all the values in column 4 (that have a matching column 1 value) as separate columns.

Thanks

---------- Post updated at 06:05 PM ---------- Previous update was at 05:46 PM ----------

Another way to look at it is to be able to print sets of values from the 4th column as a new columns if there exists a row of blank spaces.

Last edited by annazpereira; 11-18-2010 at 08:13 PM..
# 4  
Old 11-18-2010
Lame solution Smilie
Code:
$ for i in 1 5 9 13 2 6 10 14 3 7 11; do awk -v var=$i 'NR==var {print $4}' FILE; done | xargs -n4 echo
516414 378715 367817 383585
586868 597981 579270 599585
474937 468922 474098

# 5  
Old 11-18-2010
Thanks Cabrao, but I cannot use NR to separate the values since the number of records will vary from time to time!!
# 6  
Old 11-18-2010
Code:
# cat file
11-17-2010:13:26     64    4  516414 1392258
11-17-2010:13:26     128   4  586868  695603
11-17-2010:13:26     256   4  474937 1642294

11-17-2010:13:32     64    4  378715 1357066
11-17-2010:13:32     128   4  597981 1684006
11-17-2010:13:32     256   4  468922 1673001

11-17-2010:13:36     64    4  367817 1553394
11-17-2010:13:36     128   4  579270 1526043
11-17-2010:13:36     256   4  474098 1629830

11-17-2010:13:37     64    4  383585 1492919
11-17-2010:13:37     256   4  599585 1036624
# awk '{_=NR%4}_{a[_]=((a[_])?a[_]FS:x)$4;l=(_>l)?_:l}END{for(i=0;++i<=l;)print a[i]}'  file
516414 378715 367817 383585
586868 597981 579270 599585
474937 468922 474098

# 7  
Old 11-18-2010
Wow Danmero, you are very very close to the solution, against my data file I get :
HTML Code:
516414   474098 402510 385237
586868 378715   599585 601330
474937 597981 367817 484801
So I get values from other rows in column 4 mixed in too. I don't quite understand your solution.
{_=NR%4}_{a[_]=((a[_])?a[_]FS:x)$4;l=(_>l)?_:l} What exactly is this doing?

I don't know if NR%4 will work since there can be a row of spaces after 3/4/5/6 rows of data
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