Just for amusement:

#!/usr/bin/env perl

# 11114393
use Params::Validate(':all');
use 5.01800;
use warnings;

local $/;
say <DATA>=~ s{^(.+)$}{with_mean($1)}gemr;
exit;

sub with_mean {
    my ($line)=validate_pos(@_,{ type=>SCALAR });

    return $line
        if ($line =~ m{^GeneName});
    my ($count,$sum);
    ()=$line=~ m{ (\d+)(?{ $count++; $sum+=$1; })}g;
    return "$line: @{[($sum+0.0)/$count]}";
    };

__END__
GeneName E1 E2 E3 E4
ATA1 12 44 45 33
OSA2 100 79 85 83
DUA5 66 65 64 67
AXANT 4 4 6 2

[download]

gives

GeneName E1 E2 E3 E4
ATA1 12 44 45 33: 33.5
OSA2 100 79 85 83: 86.75
DUA5 66 65 64 67: 65.5
AXANT 4 4 6 2: 4

[download]

In reply to Re: Pseudocode for table data by clueless newbie
in thread Pseudocode for table data by shabird

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