Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby-skyline-core.rb

Overview

EXT Array

Instance Method Summary collapse

Instance Method Details

#aggregate(array) ⇒ Object

skyline attributes aggregate for array

Raises:

  • (ArgumentError) 


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# File 'lib/ruby-skyline-core.rb', line 19

def aggregate(array)
  pre_check_skyline_domiante(array)
  aggregate_array = []
  raise ArgumentError, "Need Array not #{array.class}"    unless array.class == Array
  each_with_index do |attr, index|
    aggregate_array << (attr + array[index]).round(6)
  end
  aggregate_array
end

#dominate?(array) ⇒ Boolean

dominate function in skyline for array

Returns:

  • (Boolean) 


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# File 'lib/ruby-skyline-core.rb', line 4

def dominate?(array)
  pre_check_skyline_domiante(array)
  flag       = 0
  check_flag = size
  each_with_index do |attr, index|
    flag += 1       if attr >  array[index]
    flag -= 1       if attr <  array[index]
    check_flag -= 1 if attr == array[index]
  end
  return false if flag == check_flag     # be dominated
  return true  if flag == 0 - check_flag # dominate
  nil
end

#pre_check_skyline_domiante(target_array) ⇒ Object

Skyline Error Handling



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# File 'lib/ruby-skyline-core.rb', line 30

def pre_check_skyline_domiante(target_array)
  unless target_array.class == Array
    raise ArgumentError, "excpet (Array) got (#{target_array.class})" 
  end

  unless size == target_array.size
    raise ArgumentError,
      "size dosen't match, excpet (#{size}) got (#{target_array.size})"
  end
end