Module: Daru::Maths::Statistics::Vector

Included in:
Vector
Defined in:
lib/daru/maths/statistics/vector.rb

Instance Method Summary collapse

Instance Method Details

#average_deviation_population(m = nil) ⇒ Object Also known as: adp 



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# File 'lib/daru/maths/statistics/vector.rb', line 124

def average_deviation_population m=nil
  @vector.average_deviation_population m
end

#coefficient_of_variation ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 76

def coefficient_of_variation
  @vector.coefficient_of_variation
end

#count(value = false) ⇒ Object

Retrieves number of cases which comply condition. If block given, retrieves number of instances where block returns true. If other values given, retrieves the frequency for this value.



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# File 'lib/daru/maths/statistics/vector.rb', line 85

def count value=false
  @vector.count value
end

#frequencies ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 64

def frequencies
  @vector.frequencies
end

#has_missing_data? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/daru/maths/statistics/vector.rb', line 56

def has_missing_data?
  @vector.has_missing_data?
end

#kurtosis(m = nil) ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 120

def kurtosis m=nil
  @vector.kurtosis m
end

#max(return_type = :stored_type) ⇒ Object

Maximum element of the vector.

to returning only the maximum number but passing :vector will return a Daru::Vector with the index of the corresponding maximum value.

Parameters:

  • return_type (Symbol) (defaults to: :stored_type) —

    Data type of the returned value. Defaults



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# File 'lib/daru/maths/statistics/vector.rb', line 43

def max return_type=:stored_type
  max_value = @vector.max
  if return_type == :vector
    Daru::Vector.new({index_of(max_value) => max_value}, name: @name, dtype: @dtype)
  else
    max_value
  end
end

#mean ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 6

def mean
  @vector.mean
end

#median ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 10

def median
  @vector.median
end

#median_absolute_deviation ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 26

def median_absolute_deviation
  @vector.median_absolute_deviation  
end

#min ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 52

def min
  @vector.min
end

#mode ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 14

def mode
  @vector.mode
end

#percentile(percent) ⇒ Object Also known as: percentil 



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# File 'lib/daru/maths/statistics/vector.rb', line 132

def percentile percent
  @vector.percentile percent
end

#product ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 22

def product
  @vector.product
end

#proportion(value = 1) ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 89

def proportion value=1
  @vector.proportion value
end

#proportions ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 68

def proportions
  @vector.proportions
end

#range ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 60

def range
  @vector.range
end

#ranked ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 72

def ranked
  @vector.ranked
end

#recode!(&block) ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 128

def recode!(&block)
  @vector.recode!(&block)
end

#skew(m = nil) ⇒ Object

Calculate skewness using (sigma(xi - mean)^3)/((N)*std_dev_sample^3)



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# File 'lib/daru/maths/statistics/vector.rb', line 116

def skew m=nil
  @vector.skew m
end

#standard_deviation_population(m = nil) ⇒ Object Also known as: sdp 



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# File 'lib/daru/maths/statistics/vector.rb', line 111

def standard_deviation_population m=nil
  @vector.standard_deviation_population m
end

#standard_deviation_sample(m = nil) ⇒ Object Also known as: sds, sd 



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# File 'lib/daru/maths/statistics/vector.rb', line 107

def standard_deviation_sample m=nil
  @vector.standard_deviation_sample m
end

#standard_error ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 30

def standard_error
  @vector.standard_error
end

#sum ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 18

def sum
  @vector.sum
end

#sum_of_squared_deviation ⇒ Object 



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# File 'lib/daru/maths/statistics/vector.rb', line 34

def sum_of_squared_deviation
  @vector.sum_of_squared_deviation
end

#sum_of_squares(m = nil) ⇒ Object Also known as: ss 



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# File 'lib/daru/maths/statistics/vector.rb', line 103

def sum_of_squares m=nil
  @vector.sum_of_squares m
end

#variance_population(m = nil) ⇒ Object

Population variance with denominator (N)



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# File 'lib/daru/maths/statistics/vector.rb', line 94

def variance_population m=nil
  @vector.variance_population m
end

#variance_sample(m = nil) ⇒ Object

Sample variance with denominator (N-1)



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# File 'lib/daru/maths/statistics/vector.rb', line 99

def variance_sample m=nil
  @vector.variance_sample m
end