A collection of functions and macros for manipulating Lisp-Stat data-frames and CL arrays
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The array-operations system is a collection of functions and macros for manipulating Common Lisp arrays and performing numerical calculations with them.
Array-operations is a 'generic' way of operating on array like data structures. Several aops functions have been implemented for data-frame. For those that haven't, you can transform arrays to data frames using the df:matrix-df function, and a data-frame to an array using df:as-array. This make it convenient to work with the data sets using either system.
To get a local copy up and running follow these steps:
An ANSI Common Lisp implementation. Developed and tested with SBCL.
(ql:quickload :array-operations)
cd ~/quicklisp/local-projects && git clone https://github.com/Lisp-Stat/array-operations.git
(asdf:clear-source-registry)
(ql:quickload :array-operations)
Arrays can be created with numbers from a statistical distribution:
(rand '(2 2)) ; => #2A((0.62944734 0.2709539) (0.81158376 0.6700171))
in linear ranges:
(linspace 1 10 7) ; => #(1 5/2 4 11/2 7 17/2 10)
or generated using a function, optionally given index position
(generate #'identity '(2 3) :position) ; => #2A((0 1 2) (3 4 5))
For more examples, please refer to the manual.
See the open issues for a list of proposed features (and known issues).
This system is part of the Lisp-Stat project; that should be your first stop for information. Also see the resources and community page for more information.
Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Any contributions you make are greatly appreciated. Please see CONTRIBUTING.md for details on the code of conduct, and the process for submitting pull requests.
The original code from Tamas Papp and Ben Dudson is licensed under the MIT license. Modifications by Symbolics are distributed under the MS-PL License. See LICENSE for more information.
Expect spurious warnings from SBCL related to 'deleting unreachable code' when running the tests. The tests it's warning about do run and we haven't had the time to debug SBCL's warnings. See issue #4.
Project Link: https://github.com/lisp-stat/array-operations
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