paraclu - 9-2 main

Paraclu finds clusters in data attached to sequences. It was first
applied to transcription start counts in genome sequences, but it
could be applied to other things too.
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Paraclu is intended to explore the data, imposing minimal prior
assumptions, and letting the data speak for itself.
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One consequence of this is that paraclu can find clusters within
clusters. Real data sometimes exhibits clustering at multiple scales:
there may be large, rarefied clusters; and within each large cluster
there may be several small, dense clusters.