Class: DataSumz::Frequency

Inherits:
Object
  • Object
show all
Defined in:
lib/datasumz/frequency.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_data) ⇒ Frequency

Returns a new instance of Frequency.



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# File 'lib/datasumz/frequency.rb', line 10

def initialize(_data)
  @data = _data
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/datasumz/frequency.rb', line 6

def data
  @data
end

Instance Method Details

#compute ⇒ Object

def initialize



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# File 'lib/datasumz/frequency.rb', line 14

def compute
  table = Hash.new(Array.new)
  total = @data.length
  hist = @data.each_with_object(Hash.new(0)){ |m,h| h[m] += 1 }.sort_by{ |k,v| v }
  hist.each do |bin|
    name  = bin[0]
    n = bin[1]
    per_total = ((n.to_f / total.to_f) * 100).round(2)
    table[name] = [n, per_total]
  end
  table
end