Class: KMeansPP::BasePoint

Inherits:
Object
  • Object
show all
Defined in:
lib/k_means_pp/point.rb

Overview

Common methods for Point and Centroid.

Direct Known Subclasses

Centroid, Point

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#x ⇒ Float

X coordinate of the point.

Returns:

  • (Float) 


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# File 'lib/k_means_pp/point.rb', line 7

def x
  @x
end

#y ⇒ Float

Y coordinate of the point.

Returns:

  • (Float) 


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# File 'lib/k_means_pp/point.rb', line 12

def y
  @y
end

Instance Method Details

#squared_distance_to(point) ⇒ Float

Measure a 2D squared distance between two points.

Parameters:

Returns:

  • (Float) 


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# File 'lib/k_means_pp/point.rb', line 19

def squared_distance_to(point)
  distance_x       = x - point.x
  distance_y       = y - point.y
  squared_distance = distance_x**2 + distance_y**2
  squared_distance
end

#to_s ⇒ Object

A string representation of the point.



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# File 'lib/k_means_pp/point.rb', line 27

def to_s
  "(#{ x }, #{ y })"
end