- # Method that picks a random subsequence of a given size from a sequence.
- # The position of the subsequence is appended to the sequence name along
- # with the strand. The sequence is reverse complemented in case of minus
- # strand.
- def get_random_seq(size, strand)
- if self.seq.size - size == 0
- start = 0
- else
- start = rand(self.seq.size - size)
- end
-
- stop = start + size - 1
- seq_name = self.seq_name + "[#{start + 1}-#{stop + 1}:#{strand}]"
- seq = self.seq[start .. stop]
- entry = Seq.new(seq_name, seq, 'dna')
-
- entry.revcomp if strand == '-'
-
- entry