fun get_avg_linenumber(model_builder: ModelBuilder): Float do
		var methods_analyse_metrics = new Counter[MClassDef]
		var filter = new ModelFilter
		for mclassdef in collect_mclassdefs(filter) do
			var result = 0
			var count = 0
			for mmethoddef in call_analyze_methods(mclassdef,model_builder, filter) do
				result += mmethoddef.line_number
				if mmethoddef.line_number == 0 then continue
				count += 1
			end
			if not mclassdef.collect_local_mproperties(filter).length != 0 then continue
			if count == 0 then continue
			methods_analyse_metrics[mclassdef] = (result/count).to_i
		end
		return methods_analyse_metrics.avg + methods_analyse_metrics.std_dev
	end