Hi Everyone, I have a table in 2 column format. Like this 
geneA    T1
geneA    T1
geneA    T2
geneB    T8
geneC    T10
geneC    T1

[download]
I want to transform it into a table like this 
NAMES    T1    T2    T8    T10
geneA    +    +    -    -
geneB    -    -    +    -
geneC    +    -    -    +

[download]
So in this case T1 and T2 are present for gene A so we put a + sign but T8 and T10 are absent so we put a - sign. Similarly for others. How can I do this. I tried something like this BUT i am stuck what to do next 
#!/usr/bin/perl-w
use strict;
use warnings;
use List::MoreUtils qw(uniq);

my %gene2TF2val = ();
my @TF = ();
while(<>){
    chomp;
    my @s = split /\s+/,$_;
    push @TF , $s[1]; # pushing every TF into array @TF but this is st
+ill not unique list of transcription factors.
    $gene2TF2val{$s[1]}->{$s[0]} = "-";    
}

@TF = uniq @TF;

[download]
Any help would be appreciated. Thanks

In reply to transforming a table by v15

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