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Contents
module Mspire
class Mzml
# the array holds start bytes
class Index < Array
# the name of the index (as a symbol)
attr_accessor :name
# a parallel array of ids (idRef's)
attr_accessor :ids
# @return [Integer] the start byte of the spectrum
# @param [Object] an Integer (the index number) or String (an id string)
def start_byte(arg)
case arg
when Integer
self[arg]
when String
@id_index ||= create_id_index
@id_index[arg]
end
end
# generates a scan to index hash that points from scan number to the
# spectrum index number. returns the index, nil if the scan ids
# are not present and spectra are, or false if they are not unique.
def create_scan_to_index
scan_re = /scan=(\d+)/
scan_to_index = {}
ids.each_with_index do |id, index|
md = id.match(scan_re)
scan_num = md[1].to_i if md
if scan_num
if scan_to_index.key?(scan_num)
return false
else
scan_to_index[scan_num] = index
end
end
end
if scan_to_index.size > 0
scan_to_index
elsif ids.size > 0
nil # there are scans, but we did not find scan numbers
else
scan_to_index
end
end
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems