Narray::Convolve
Narray::Convolve is returns the discrete, linear convolution of two one-dimensional sequences.
Installation
Add this line to your application's Gemfile:
gem 'narray-convolve'And then execute:
$ bundle install
Or install it yourself as:
$ gem install narray-convolve
Usage
Narray::Convolve is similar to numpy.convolve, but with a different order of second arguments.
irb(main):001:0> require "narray/convolve"
=> true
irb(main):002:0> n = Numo::DFloat[1,2,3]
=>
Numo::DFloat#shape=[3]
...
irb(main):003:0> m = Numo::DFloat[0,1,0.5].reverse
=>
Numo::DFloat(view)#shape=[3]
...
irb(main):004:0> Narray::Convolve.convolve(n, m, :same)
=>
Numo::DFloat(view)#shape=[3]
[1, 2.5, 4]or
> Narray::Convolve.convolve([1,2,3], [0,1,0.5].reverse, :same)
=> [1, 2.5, 4]In case of Python
>>> import numpy as np
>>> np.convolve([1,2,3],[0,1,0.5], 'same')
array([1. , 2.5, 4. ])
>>>See also: numpy.convolve — NumPy v1.20 Manual
License
The gem is available as open source under the terms of the MIT License.