Numo::NArray

GitHub | RubyGems

Numo::NArray is an Numerical N-dimensional Array class for fast processing and easy manipulation of multi-dimensional numerical data, similar to numpy.ndaray. This project is the successor to Ruby/NArray.

Documentation

All documents are primitive.

Numo::Linalg - Linear Algebra library with LAPACK.
Numo::GSL - Ruby interface for GSL (GNU Scientific Library).
Numo::FFTW - Ruby/Numo interface to FFTW (A Discrete Fourier Transform library.
Numo::FFTE - Ruby interface for FFTE (A Fast Fourier Transform library with radix-2,3,5).
Numo::Gnuplot - Simple and easy-to-use Gnuplot interface.

Installation

Requirement

Ruby ver 2.2 and later.

Ubuntu, Debian, Bash on Windows

apt install -y git ruby gcc ruby-dev rake make
gem install specific_install
gem specific_install https://github.com/ruby-numo/numo-narray.git

Quick start

An example

[1] pry(main)> require "numo/narray"
=> true
[2] pry(main)> a = Numo::DFloat.new(3,5).seq
=> Numo::DFloat#shape=[3,5]
[[0, 1, 2, 3, 4],
 [5, 6, 7, 8, 9],
 [10, 11, 12, 13, 14]]
[3] pry(main)> a.shape
=> [3, 5]
[4] pry(main)> a.ndim
=> 2
[5] pry(main)> a.class
=> Numo::DFloat
[6] pry(main)> a.size
=> 15

For more examples, check out the narray version of 100 numpy exercises.

Wiki version of the 100 exercises
Reproducible version of the 100 exercises (With this, you can try narray without creating an environment locally.)

Development

Build

git clone https://github.com/ruby-numo/numo-narray
cd numo-narray
bundle install
bundle exec rake compile

Run tests

bundle exec rake test

Tips: You may run tests defined in a specified line as:

bundle exec ruby test/bit_test.rb --location 27