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   CT => ["A", 0.7, "G", 1],
   GA => ["T", 0.8, "C", 1],
   GC => ["A", 0.2, "T", 1],
   GT => ["A", 1],

   AAA => 0.0335,
   CCC => 0.0158,
...
   TTT => 0.0350,
   GCG => 0.0030,
   ...

package    Markov::Ndimensional;

...
    return $howmany;
}
1;

#!/usr/bin/env perl

...
    return "Usage : $0 <options>\n";
}
1;

#!/usr/bin/env perl

...
    return "Usage : $0 <options>\n";
}
1;

#!/usr/bin/env perl

...
    return "Usage : $0 <options>\n";
}
1;

$ wget ftp://ftp.ncbi.nih.gov/genomes/Homo_sapiens/CHR_20/hs_ref_GRCh3
+8.p12_chr20.fa.gz # warning ~100MB
# this will build the 3-dim probability distribution of the input DNA 
+seq and serialise it to the state file
...
# now work with some text, e.g http://www.gutenberg.org/files/84/84-0.
+txt (easy on the gutenberg servers!!!)
$ analyse_text.pl --input-corpus ShelleyFrankenstein.txt --ngram-lengt
+h 2 --output-state shelley.state
$ predict_text.pl --input-state shelley.state