59 lines
1.7 KiB
Ruby
59 lines
1.7 KiB
Ruby
require 'formula'
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class Fann < Formula
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homepage 'http://leenissen.dk/fann/wp/'
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url 'http://downloads.sourceforge.net/project/fann/fann/2.2.0/FANN-2.2.0-Source.tar.gz'
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sha1 'ff8341e4104bdbc0f3ab7ad39aef33285f8512d4'
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depends_on 'cmake' => :build
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option :universal
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def install
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ENV.universal_binary if build.universal?
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system "cmake", ".", *std_cmake_args
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system "make install"
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end
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def test
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mktemp do
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(Pathname.pwd/'xor.data').write <<-EOS.undent
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4 2 1
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-1 -1
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-1
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-1 1
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1
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1 -1
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1
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1 1
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-1
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EOS
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(Pathname.pwd/'test.c').write <<-EOS.undent
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#include "fann.h"
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int main()
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{
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const unsigned int num_input = 2;
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const unsigned int num_output = 1;
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const unsigned int num_layers = 3;
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const unsigned int num_neurons_hidden = 3;
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const float desired_error = (const float) 0.001;
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const unsigned int max_epochs = 500000;
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const unsigned int epochs_between_reports = 1000;
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struct fann *ann = fann_create_standard(num_layers, num_input,
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num_neurons_hidden, num_output);
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fann_set_activation_function_hidden(ann, FANN_SIGMOID_SYMMETRIC);
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fann_set_activation_function_output(ann, FANN_SIGMOID_SYMMETRIC);
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fann_train_on_file(ann, "xor.data", max_epochs,
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epochs_between_reports, desired_error);
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fann_save(ann, "xor_float.net");
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fann_destroy(ann);
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return 0;
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}
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EOS
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system ENV.cc, "-o", "test", "test.c", "-lfann"
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system "./test"
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system "cat xor_float.net"
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puts
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end
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end
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end
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