count frequency correspondint to one column

[genome]

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[Your Mother]

Cross-posted and answered: http://stackoverflow.com/questions/30713676/how-to-count-each-entry-from-each-column-corresponding-to-a-search-term. :|

[stevieb]

Cross-posted at StackOverflow. Please make it known in your posts when you're cross posting on numerous sites, and you should at least wait a reasonable amount of time for people to answer before asking somewhere else.

A few other things... we appreciate it if you post what you've actually tried, and when you do post, put input data, code and error messages in <code></code> tags.

[Hermano23]

If there is a space between each row's entries, just use the split() function. For example, split(' ', 'a sk asd ') will give you an array {a, sk, asd}. From here you have a few options, but now it is easy look through one index at a time. Maybe make a hash of entries and their frequencies?

[Hosen1989]

Hi there,

if you want to learn try think before ask ^_^ OK

now you can try this code as it worked with me, I put sample data in test file $File_Name = 'data.txt'

#!/usr/bin/perl -w 
use strict; 
use warnings; 

my $File_Name = 'data.txt';
my %Aggr;
open(FH, "< ./$File_Name") or die "couldn\'t open [$File_Name]\n".$!;
my @Data = <FH>;
foreach my $line(@Data){
    my @tmpRaw = split / /, $line;
    foreach my $Item(@tmpRaw){
        chomp($Item);
        $Aggr{$Item}++;
    }
}

foreach my $key (sort keys %Aggr){
    print $key.":".$Aggr{$key}."\n";
}

close(FH);