;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages machine-learning)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (guix download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages))

(define-public libsvm
  (package
    (name "libsvm")
    (version "3.20")
    (source
     (origin
       (method url-fetch)
       (uri (string-append
             "https://github.com/cjlin1/libsvm/archive/v"
             (string-delete #\. version) ".tar.gz"))
       (file-name (string-append name "-" version ".tar.gz"))
       (sha256
        (base32
         "1jpjlql3frjza7zxzrqqr2firh44fjb8fqsdmvz6bjz7sb47zgp4"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ;no "check" target
       #:phases (modify-phases %standard-phases
                  (delete 'configure)
                  (replace
                   'install
                   (lambda* (#:key outputs #:allow-other-keys)
                     (let* ((out (assoc-ref outputs "out"))
                            (bin (string-append out "/bin/")))
                       (mkdir-p bin)
                       (for-each (lambda (file)
                                   (copy-file file (string-append bin file)))
                                 '("svm-train"
                                   "svm-predict"
                                   "svm-scale")))
                     #t)))))
    (home-page "http://www.csie.ntu.edu.tw/~cjlin/libsvm/")
    (synopsis "Library for Support Vector Machines")
    (description
     "LIBSVM is a machine learning library for support vector
classification, (C-SVC, nu-SVC), regression (epsilon-SVR, nu-SVR) and
distribution estimation (one-class SVM).  It supports multi-class
classification.")
    (license license:bsd-3)))