A serious trader will test other approaches such as a longer or a shorter EMA, different EMAs for different stocks, or another trend-following tool, such as a least regression trendline.

• 认真的交易者会测试其它方法，比如均线的日期参数，大点，或小点，不用的股票用不用的均线，或其它趋势跟踪工具，比如最后衰退趋势线。