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Full Discussion: Average each numeric column
Top Forums Shell Programming and Scripting Average each numeric column Post 303030672 by rdrtx1 on Wednesday 13th of February 2019 03:33:52 PM
Old 02-13-2019
Code:
awk '
NR==1 { for (i=1; i<=NF; i++) if ($(i) ~ /^POP/) { printf "%-10s", "AVG_" $i; col[i]=i; }; print ""; next; }
{for (i=1; i<=NF; i++) if (col[i]) sum_col[i]+=$i;}
END { for (i=1; i<=NF; i++) if (col[i]) printf "%-10.2f", sum_col[i]/(NR-1); print ""; }
' input_file

 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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