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Ruby bindins for Fast Fourier Transforms by using FFTW Ver.3.

X-12-ARIMA is seasonal adjustment software produced, distributed, and maintained by the U.S. Census Bureau, where it is used for all official seasonal adjustments.

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.

This is an additional class of ruby with conduct processing of missing value to NArray which is a numeric multi-dimensional array class.

Miscellaneous functions and classes to facilitate programming. Misc requires NArray, a multi-dimensional numeric array class for ruby.

A class of units of physical quantities for Ruby. This class covers most functionality of UNIDATA's UDUNITS Library, however, with a more sophisticated handling of string expressions. UDUNITS always decomposes units into the four base units and discards the original string expressions. Therefore, 'hPa' always becomes '100 kg.m-1.sec-1', and 'day' always becomes '86400 sec'. On the other hand, this library tries to keep the original expressions as much as possible by default, while allowing partial to complete decompositions if needed.

Ruby/GSL is a Ruby extension library for GSL (GNU Scientific Library), which provides a number of functions and methods for numerical computing in Ruby.

SAGA - short hand for "System for Automated Geoscientific Analyses" - is a free, hybrid, cross-platform GIS software. The heart of SAGA is its C++ and thus object oriented Application Programming Interface (API), providing data object definitions and computational methods for raster, vector and tabular data. As a normal user, you will not get into touch with the API. But as an interested scientist or coder you will soon discover its great flexibility.

Sage is a free open-source mathematics software system licensed under the GPL. It combines the power of many existing open-source packages into a common Python-based interface. Mission: Creating a viable free open source alternative to Magma, Maple, Mathematica and Matlab. For instructions on adding optional packages, see files/optional-packages.txt. You may want to avoid the command "make install" and instead simply use the bin/mv command to move the ${WRKSRC} directory to where-ever you want it.