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Contents
#require 'set'
#require 'mspire/ident/protein_group'
module Mspire
module Quant
module SpectralCounts
Counts = Struct.new(:spectral, :aaseqcharge, :aaseq)
class Counts
def initialize(*args)
super(*args)
# default is zero counts
self[0] ||= 0.0 ; self[1] ||= 0.0 ; self[2] ||= 0.0
end
end
# returns a parallel array of Count objects. If split_hits then counts
# are split between groups sharing the hit. peptide_hits must respond
# to :charge and :aaseq. If a block is given, the weight of a
# particular hit can be given (typically this will be 1/#proteins
# sharing the hit
def self.counts(peptide_hits, &share_the_pephit)
uniq_aaseq = {}
uniq_aaseq_charge = {}
weights = peptide_hits.map do |hit|
weight = share_the_pephit ? share_the_pephit.call(hit) : 1
# these guys will end up clobbering themselves, but the
# linked_to_size should be consistent if the key is the same
uniq_aaseq_charge[[hit.aaseq, hit.charge]] = weight
uniq_aaseq[hit.aaseq] = weight
weight
end
counts_data = [weights, uniq_aaseq_charge.values, uniq_aaseq.values].map do |array|
array.reduce(:+)
end
Counts.new(*counts_data)
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems