module MarketHelper

  # takes probability and returns a string giving odds
  def oddstring(p)
    q = p.to_f
    return "even odds" if (q-0.5).abs < 0.01
    return "#{ (100*q/(1-q)).round/100.0} to 1 in favor" if q/(1-q)>=1
    return "#{ (100*(1-q)/q).round/100.0} to 1 against"
  end

end