Method: Utilities::Statistics#statistics

Defined in:
lib/utilities/utilities.rb

#statistics(already_sorted = false) ⇒ Object Also known as: stats

Return all statistics from self in a simple hash



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# File 'lib/utilities/utilities.rb', line 139

def statistics( already_sorted = false )
  sorted = sort_and_extend( already_sorted )
  
  {
    :first => self.first,
    :last => self.last,
    :size => self.size,
    :sum => self.sum,
    :squares => self.squares,
    :sqrts => self.sqrts,
    :min => self.min,
    :max => self.max,
    :mean => self.mean,
    :frequences => self.frequences,
    :variance => self.variance,
    :standard_deviation => self.standard_deviation,
    :population_variance => self.variance(true),
    :population_standard_deviation => self.standard_deviation(true),
    :modes => self.modes,
    
    # Need to be sorted...
    :ranks => sorted.ranks( true ),
    :median => sorted.median( true ),
    :midrange => sorted.midrange( true ),
    :statistical_range => sorted.statistical_range( true ),
    :quartiles => sorted.quartiles( true ),
    :interquartile_range => sorted.interquartile_range( true )
  }
end