This directory contains the plugin library used as the interface to NArray and NArrayMiss library from Ruby/CArray.

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NArray Library (narray.rubyforge.org/) by Masahiro Tanaka.

NArray is an Numerical N-dimensional Array class. Supported element types 
are 1/2/4-byte Integer, single/double-precision Real/Complex, and Ruby 
Object. This extension library incorporates fast calculation and easy
manipulation of large numerical arrays into the Ruby language. NArray 
has features similar to NumPy, but NArray has vector and matrix subclasses.

(License: Ruby License)

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NArrayMiss Library (ruby.gfd-dennou.org/index.htm) by Seiya Nishizawa.

NArrayMiss is a additional class processing of missing value with to NArray
for Ruby.

(License: GNU Lesser General Public License (LGPL) version 2.)