library for a sparse, compressed, binary persistent storage

 Cooler is a support library for a sparse, compressed, binary persistent
 storage format, also called cooler, used to store genomic interaction
 data, such as Hi-C contact matrices.
 .
 The cooler file format is an implementation of a genomic matrix data
 model using HDF5 as the container format. The cooler package includes a
 suite of command line tools and a Python API to facilitate creating,
 querying and manipulating cooler files.