Module: ArrayExtensions

Defined in:
lib/ruby_extensions.rb

Instance Method Summary collapse

Instance Method Details

#**(other) ⇒ Object 



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# File 'lib/ruby_extensions.rb', line 24

def **(other)
  map{|x| x * other }
end

#>>(other) ⇒ Object

harmonic operator



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# File 'lib/ruby_extensions.rb', line 29

def >>(other)
  map{|x| (x * other) % 360.0 }
end

#avg ⇒ Object 



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# File 'lib/ruby_extensions.rb', line 16

def avg
  sum / size.to_f
end

#diff ⇒ Object 



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# File 'lib/ruby_extensions.rb', line 6

def diff
  diffop{|x, y| y - x }
end

#diffop ⇒ Object 



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# File 'lib/ruby_extensions.rb', line 10

def diffop
  d1 = dup.unshift(0)
  d2 = dup.push(0)
  (0..size).map{|i| yield(d1[i], d2[i]) }[1...-1]
end

#gmean ⇒ Object 



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# File 'lib/ruby_extensions.rb', line 20

def gmean
  reduce(:*).to_f**(1.0 / size)
end