09-11-2012
Quote:
Originally Posted by
linseyr
I wanted to get the average of two columns and compare that average to a column in another file. I have the average in column 2 in in column 1 the chromosome number. If column 1 is the same for both files i want to calculate the difference between column 2 of two files as described above.
Sorry for all questions. im really new with this.
This is a very confusing explanation and seems that your original statement has nothing to do with the what're asking now and with the sample file you provided.
If the last statement is what you're after, please provide sample files and the desired output.
Also please show your own attempt at the resolution - it would help us guide you in the right direction.
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LEARN ABOUT OPENDARWIN
comm
COMM(1) BSD General Commands Manual COMM(1)
NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
DIAGNOSTICS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
cmp(1), diff(1), sort(1), uniq(1)
STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BSD
June 6, 1993 BSD