split one column into multiple columns


 
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# 1  
Old 06-29-2009
split one column into multiple columns

hey,

i have the following data:
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
4.600000
9.800000
12.70000
12.90000
33.80000

The following command , awk '{a[NR%14+1]=a[NR%14+1]" "$0} END {for (i in a){print a[i]}}', yields:

0.000000 0.000000 0.000000
0.000000 0.000000 0.000000
0.000000 0.000000 0.000000
0.000000 0.000000 0.000000
0.000000 0.000000 0.000000
0.000000 0.000000 0.000000
0.000000 0.000000 0.000000
0.000000 0.000000 4.600000
0.000000 0.000000 9.800000
0.000000 0.000000 12.70000
0.000000 0.000000 33.80000
0.000000 0.000000 12.90000
0.000000 0.000000 0.000000
0.000000 0.000000 0.000000

where i want the last column to be

0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
4.600000
9.800000
12.70000
12.90000
33.80000. The ascending order is lost...

Can anyone help?

ThanxSmilie
# 2  
Old 06-29-2009
Code:
nawk '
   {idx=FNR%14+1} 
   !(idx in a){key[++key[0]]=idx}
   {a[idx]=a[idx] OFS $0} 
    END {for(i=1;i<=key[0];i++) print a[key[i]]}' myFile

# 3  
Old 06-29-2009
nice, that worked perfectly...
Thanx alot
# 4  
Old 06-29-2009
Quote:
Originally Posted by vgersh99
Code:
nawk '
   {idx=FNR%14+1} 
   !(idx in a){key[++key[0]]=idx}
   {a[idx]=a[idx] OFS $0} 
    END {for(i=1;i<=key[0];i++) print a[key[i]]}' myFile

you probably need to this tweak if to be a bit more pedantic:
Code:
nawk '
   {idx=FNR%14+1} 
   !(idx in a){key[++key[0]]=idx}
   {a[idx]=(idx in a) ? a[idx] OFS $0 : $0} 
    END {for(i=1;i<=key[0];i++) print a[key[i]]}' myFile

# 5  
Old 06-29-2009
cool, I'll use it and see what it does differently under different situations...
not quite sure what you did, but it works... hehe.
Can make out some of the code, but need to check out the rest unless you can explain it better to me...
Thanx alot
# 6  
Old 06-29-2009
Quote:
Originally Posted by vgersh99
you probably need to this tweak if to be a bit more pedantic:
Code:
nawk '
   # build the index (idx) for the associative array
   {idx=FNR%14+1} 

   # if index (idx) is NOT in array (a), create annay "key" 
   # the index to "key" is the incremented counter stored in key[0]
   # at the end of the processing, key[0] will contain the number of
   # UNIQUE indecies (idx)/
   !(idx in a){key[++key[0]]=idx}

   # if "idx" in already in "a", add "$0" to it; if "idx" is NOT in a assign $0 
   # to it - this prevents a[idx] have a leading field separator/OFS
   {a[idx]=(idx in a) ? a[idx] OFS $0 : $0} 

    # iterate through array "a" indexed by the values stored in array "key"
    # indexed from 1 to max stored in "key[0]"
    END {for(i=1;i<=key[0];i++) print a[key[i]]}' myFile

The above assumes that the input 'stream' has already been sorted in the desired output order.
# 7  
Old 06-30-2009
Code:
nawk -v col="$1" '{_[NR]=$0;lines=NR}
END{
tmp=lines/col
for(i=1;i<=tmp;i++)
{
for(j=1;j<=col;j++)
printf("%s ",_[i+(j-1)*col])
print ""
}
}' yourfile

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