Module: EnumerableStatistics::ArrayExtension

Included in:
Array
Defined in:
lib/enumerable_statistics/array_ext.rb

Instance Method Summary collapse

Instance Method Details

#argmax ⇒ Object 



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# File 'lib/enumerable_statistics/array_ext.rb', line 15

def argmax
  find_max[1]
end

#argmin ⇒ Object 



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# File 'lib/enumerable_statistics/array_ext.rb', line 31

def argmin
  find_min[1]
end

#find_max ⇒ Object 



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# File 'lib/enumerable_statistics/array_ext.rb', line 3

def find_max
  n = size
  return nil if n == 0

  imax, i = 0, 1
  while i < n
    imax = i if self[i] > self[imax]
    i += 1
  end
  [self[imax], imax]
end

#find_min ⇒ Object 



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# File 'lib/enumerable_statistics/array_ext.rb', line 19

def find_min
  n = size
  return nil if n == 0

  imin, i = 0, 1
  while i < n
    imin = i if self[i] < self[imax]
    i += 1
  end
  [self[imin], imin]
end