From: Vicente Bosch Campos <vbosch@...>
Date: 2011-03-23T17:32:45+09:00
Subject: Dynamically calling a certain set of methods

Hi,

I am doing an implementation of a genetic algorithm to resolve a certain type of equations. I need to randomly call a certain method from a set:

    def mutation
      
      self.send(self.methods.select!{|element| element.to_s.end_with?("Mutation")}.shuffle![0])     #I'm using to_s as the symbol object do not allow end_with?
      
    end
    
    def operatorSwitchMutation
    end
    
    def numberSwitchMutation
    end
    
    def unusedNumberMutation
    end


Is self.send(self.methods.select!{|element| element.to_s.end_with?("Mutation")}.shuffle![0]) the best way to do it ? Is there a more ruby idiom to perform the safe thing ?

Best,
V.