Class: Node

Inherits:
Object show all
Defined in:
lib/node.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(position) ⇒ Node

Returns a new instance of Node.



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# File 'lib/node.rb', line 15

def initialize(position)
  @position = position
end

Instance Attribute Details

#best_distance ⇒ Object

Returns the value of attribute best_distance.



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# File 'lib/node.rb', line 13

def best_distance
  @best_distance
end

#closest_centroid ⇒ Object

Returns the value of attribute closest_centroid.



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# File 'lib/node.rb', line 13

def closest_centroid
  @closest_centroid
end

#position ⇒ Object

Returns the value of attribute position.



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# File 'lib/node.rb', line 13

def position
  @position
end

Class Method Details

.create_nodes(data) ⇒ Object 



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# File 'lib/node.rb', line 4

def create_nodes(data)
  nodes = []
  data.each do |position|
    nodes << new(position)
  end
  nodes
end

Instance Method Details

#update_closest_centroid(centroids) ⇒ Object 



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# File 'lib/node.rb', line 19

def update_closest_centroid(centroids)
  calculate_initial_centroid(centroids.first) unless @closest_centroid
  updated = false
  centroids.each do |centroid|
    distance = calculate_distance(centroid)
    if distance < best_distance
      updated = true
      @closest_centroid = centroid
      @best_distance = distance
    end
  end
  updated == true ? 1 : 0
end