SNPfile is a library and API for manipulating large SNP data sets with associated meta-data, such as marker names, marker locations, individuals' phenotypes, etc. in an I/O efficient binary file format. In its core, SNPfile assumes very little about the metadata associated with markers and individuals, but leaves this up to application program protocols. License: GNU General Public License (GPL) Changes: This version introduces a completely rewritten serialisation framework for storing meta-data in the file format.

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