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Awk: convert rows to columns every n lines

 
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# 1  
Old 05-09-2013
Awk: convert rows to columns every n lines
Hi guys!

I use AWK commands under GAMS to predispose the data files to be read by GAMS.
I have a file which contains groups of data I need. Unfortunately I have the data spread in 3 rows for each subject.

Here's an example (the file is really long)

Code:
1 0 2.0956 100.00 250.00 100.00 2.0956 0.10000 R 0.00 20 1.00000
86222 2 16.50 13.50 0.2156 7.1880 275.0 0.36945 1.01250 1.10000 0.90000 0.01250 0 0 0 1 0.0000
86221 2 25.00 15.00 0.2156 7.1880 275.0 0.36945 1.07500 1.10000 0.90000 0.01250 0 0 0 1 0.0000
2 0 2.0956 100.00 250.00 100.00 2.0956 0.10000 R 0.00 20 1.00000
86222 2 16.50 13.50 0.2156 7.1880 275.0 0.36945 1.01250 1.10000 0.90000 0.01250 0 0 0 1 0.0000
86221 2 25.00 15.00 0.2156 7.1880 275.0 0.36945 1.07500 1.10000 0.90000 0.01250 0 0 0 1 0.0000

Is it possible to convert the rows to columns every 3 lines so that I have only one row per subject and I can easily read each field using awk?


I tried to do the conversion with this code

Code:
awk -f '{printf("%s%s",$0,NR%3?" ":"\n")}'

However the output I get is this:

Code:
1 0 2.0956 100.00 250.00 100.00 2.0956 0.10000 R 0.00 20 1.00000 86222 2 16.50 13.50 0.2156 7.1880 275.0 0.36945 1.01250 1.10000 0.90000 0.01250 0 0 0 1 0.0000 86221 2 25.00 15.00 0.2156 7.1880 275.0 0.36945 1.07500 1.10000 0.90000 0.01250 0 0 0 1 0.0000 2 0 2.0956 100.00 250.00 100.00 2.0956 0.10000 R 0.00 20 1.00000 86222 2 16.50 13.50 0.2156 7.1880 275.0 0.36945 1.01250 1.10000 0.90000 0.01250 0 0 0 1 0.0000 86221 2 25.00 15.00 0.2156 7.1880 275.0 0.36945 1.07500 1.10000 0.90000 0.01250 0 0 0 1 0.0000

Could you please help me?
Thank you!
# 2  
Old 05-09-2013
I think it will work.. why you need -f in awk?
# 3  
Old 05-09-2013
I don't know exactly why, but if I delete the -f I get an error from GAMS compiler..


Here my problem is that it seems that GAMS doesn t recognize the (NR%3) statement. I do not see any error in my code, but still it converts all rows to columns, without actualli checking that if(NR%==0) it should add a \n
# 4  
Old 05-09-2013
Unfortunately I am not familiar with GAMS Smilie
# 5  
Old 05-09-2013
Smilie thank anyways. At least now I know that that code is correct, so there should be something strange with GAMS I do not know..
 
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