Some useful perl modules I have written:

• Algorithms::Matrix: an object-oriented matrix manipulation and linear algebra library (requires Inline::C)

<li>Algorithms::Cube: an object-oriented library for third order tensors (requires Algorithms::Matrix)</li>

<li>Algorithms::FCM: fuzzy c-means clustering (requires Inline::C)</li>

<li>Algorithms::RVM: relevance vector machine for classification (requires Algorithms::Matrix)</li>

<li>Algorithms::TimeSeries: extends Algorithms::Matrix with methods for time series (requires Algorithms::Matrix)</li>

<li>HDF5: perl wrapper for the <a href="http://www.hdfgroup.org/HDF5/">hdf5 library</a></li>

<li>CellH5: perl API to the <a href="http://www.cellh5.org/">CellH5</a> file format (requires HDF5)</li>

<li>Labstuff: perl objects to represent various lab items</li>