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require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper.rb') require 'ms/spectrum/compare' # when you switch order the return intensities are swapped: class Array def rev_ab each {|v| (v[0], v[1]) = v[1], v[0] } end end module CompareSpec describe 'comparison of spectra' do before do @a = Ms::Spectrum.new([[0,2,3,4], [5,6,7,8]]) @b = Ms::Spectrum.new([[0, 1.5, 3.5, 5.5], [9,10,11,12]]) @c = Ms::Spectrum.new([[0, 1], [8,9]]) @d = Ms::Spectrum.new([[0.6, 0.75], [10,11]]) end it 'compares spectra' do # array form: @c.compare(@d).rev_ab.is( @d.compare(@c) ) @c.compare(@d).is [[8, 10, 0.6]] # block form exp = [[5,9], [6,10], [7,11]] # default radius 1.0 @a.compare(@b) do |int_a, int_b| exp.delete([int_a, int_b]) end exp.size.is 0 end it 'computes similarity score' do @a.sim_score(@a, :radius => 0.1).is 1.0 # this is just frozen, not verified: @a.sim_score(@b).should.be.close 0.702945603476432, 0.000001 end it 'computes a pic score' do @a.pic_score(@a, :radius => 0.01).is 100.0 @a.pic_score(@d, :radius => 0.01).is 0.0 # frozen: @a.pic_score(@b).should.be.close 68.4981684981685, 0.000001 end end end
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8 entries across 8 versions & 1 rubygems