Class: Daru::Accessors::ArrayWrapper

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Enumerable
Defined in:
lib/daru/accessors/array_wrapper.rb

Overview

Internal class for wrapping ruby array

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(vector, context) ⇒ ArrayWrapper

Returns a new instance of ArrayWrapper.


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# File 'lib/daru/accessors/array_wrapper.rb', line 23

def initialize vector, context
  @data = vector.to_a
  @context = context

  set_size
end

Instance Attribute Details

#dataObject (readonly)

Returns the value of attribute data


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# File 'lib/daru/accessors/array_wrapper.rb', line 21

def data
  @data
end

#sizeObject

Returns the value of attribute size


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# File 'lib/daru/accessors/array_wrapper.rb', line 20

def size
  @size
end

Instance Method Details

#<<(element) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 52

def << element
  @data << element
  set_size
end

#==(other) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 39

def == other
  @data == other
end

#[](*index) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 30

def [] *index
  @data[*index]
end

#[]=(index, value) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 34

def []= index, value
  @data[index] = value
  set_size
end

#delete_at(index) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 43

def delete_at index
  @data.delete_at index
  set_size
end

#dupObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 65

def dup
  ArrayWrapper.new @data.dup, @context
end

#each(&block) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 10

def each(&block)
  @data.each(&block)
  self
end

#index(key) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 48

def index key
  @data.index key
end

#map!(&block) ⇒ Object


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# File 'lib/daru/accessors/array_wrapper.rb', line 15

def map!(&block)
  @data.map!(&block)
  self
end

#maxObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 77

def max
  @data.max
end

#meanObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 69

def mean
  sum.quo(@size - @context.missing_positions.size).to_f
end

#minObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 81

def min
  @data.min
end

#productObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 73

def product
  @data.inject(1) { |m,e| m*e unless e.nil? }
end

#sumObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 85

def sum
  @data.inject(0) do |memo ,e|
    memo += e unless e.nil? #TODO: Remove this conditional somehow!
    memo
  end
end

#to_aObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 61

def to_a
  @data
end

#uniqObject


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# File 'lib/daru/accessors/array_wrapper.rb', line 57

def uniq
  @data.uniq
end