Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/kmat/misc.rb

Instance Method Summary collapse

Instance Method Details

#argsort ⇒ Object 



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# File 'lib/kmat/misc.rb', line 71

def argsort
	ret = Array.new(self.size, &:itself)
	if block_given?
		ret.sort! do |a, b|
			yield(self[a], self[b])
		end
	else
		ret.sort_by! do |elm|
			self[elm]
		end
	end
end

#argsort!(ary) ⇒ Object 



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# File 'lib/kmat/misc.rb', line 83

def argsort!(ary)
	if block_given?
		sort! do |a, b|
			yield(ary[a], ary[b])
		end
	else
		sort_by! do |elm|
			self[elm]
		end
	end
end

#argsort_by ⇒ Object 



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# File 'lib/kmat/misc.rb', line 94

def argsort_by
	if block_given?
		Array.new(self.size, &:itself).sort_by! do |elm|
			yield(self[elm])
		end
	else
		self.to_enum(:argsort_by)
	end
end