I would like to calculate the average of columns 2 and 3 on each line, add 1 to this value and print the whole line. Some of the average values will be floating point numbers.
The input file looks like this:
chr20 2330559 2330737
chr20 2332853 2333041
chr20 2537555 2537711
The output file:
chr20 2330648 2330649
chr20 2332947 2332948
chr20 2537633 2537634
I've tried various combinations of awk without success. Any suggestions would be great! Thanks Harriet
Use awk for this:
awk '{$2=($2+$3)/2; $3=$2+1}1' file
You can also use the int() function to ensure that the result is an integer:
awk '{$2=int(($2+$3)/2); $3=$2+1}1' file
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