# File lib/churn/calculator.rb, line 32
    def initialize(options={})
      @churn_options = ChurnOptions.new.set_options(options)

      @minimum_churn_count = @churn_options.minimum_churn_count
      @ignores             = @churn_options.ignores
      @source_control      = SourceControl.set_source_control(@churn_options.start_date)

      @changes          = {}
      @revision_changes = {}
      @class_changes    = {}
      @method_changes   = {}
    end