Help with calculate total sum of same data problem


 
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# 1  
Old 06-16-2011
Help with calculate total sum of same data problem

Long list of input file:
Code:
AGDRE1	0.1005449050
AGDRE1	2.1005443435
AGDRE1	1.2005449050
AGDRE1	5.1005487870
AASFV3	50.456304789
AASFV3	2.3659706549
AASFV3	6.3489807860
AASFV3	3.0089890148
RTRTRS	5.6546403546
.
.

Desired output file:
Code:
AGDRE1	8.5021829410
AASFV3	62.180245240
RTRTRS	5.6546403546
.
.

I would like to total up all the figure in column 2 if they share the same data in column 1.
Input file might up to few MB.
Thanks for any advice.
# 2  
Old 06-16-2011
Try:
Code:
awk '{a[$1]+=$2}END{for (i in a){printf "%s\t%.10f\n",i,a[i]}}' file

This User Gave Thanks to bartus11 For This Post:
# 3  
Old 06-16-2011
Try this
Code:
 
perl -lane '$hash{$F[0]}+=$F[1];END{print "$_\t$hash{$_}" for keys %hash}' input

This User Gave Thanks to getmmg For This Post:
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