Class: Stats::Mean

Inherits:
StatsType show all
Defined in:
lib/shades/stats.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from StatsType

get

Constructor Details

#initialize(d) ⇒ Mean

Returns a new instance of Mean.



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# File 'lib/shades/stats.rb', line 50

def initialize(d)
  @sum = 0.0
  @n = 0.0
end

Instance Attribute Details

#n ⇒ Object

Returns the value of attribute n.



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# File 'lib/shades/stats.rb', line 48

def n
  @n
end

#sum ⇒ Object

Returns the value of attribute sum.



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# File 'lib/shades/stats.rb', line 47

def sum
  @sum
end

Instance Method Details

#add(d) ⇒ Object 



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# File 'lib/shades/stats.rb', line 55

def add(d)
  @sum += d
  @n += 1.0
end

#get_value ⇒ Object 



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# File 'lib/shades/stats.rb', line 70

def get_value
  @sum / @n
end

#merge(stat) ⇒ Object 



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# File 'lib/shades/stats.rb', line 65

def merge(stat)
  @sum += stat.sum
  @n += stat.n
end

#remove(d) ⇒ Object 



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# File 'lib/shades/stats.rb', line 60

def remove(d)
  @sum -= d
  @n -= 1.0
end