有的交易新手用五分钟图开仓（这不是我最喜欢的方式），在发现市场走势与预期相反时，他们就会切换到十五分钟图等待走势反转。如果走势仍与预期相反，他们就会切换到一小时图，为自己留在交易之中寻找借口。接下来就是追加保证金了，因为他们的剩余资金不够维持仓位了。
当然，主要的问题是他们试图留在亏损的仓位中，而不是在亏损较少时平仓退出。出现亏损并不意味着你不懂交易。太多交易新手都认为交易亏损了就是个失败者，或是觉得自己没有交易的天分。这是完全错误的想法。
专业的交易员都了解，交易中出现亏损是难免的。在投机的领域中，亏损是一定会发生的。学会应对亏损与其他的成功因素同样重要。你不喜欢亏损，但你必须接受这个事实，不是所有的交易都能盈利。你必须确保亏损很少，这样才能用盈利来弥补。切换周期表，固守在交易中不肯退出是不会减少亏损的。
在交易开始之前就要确定好出场点，并且要严格遵守。你应该通过日积月累来学会判断，而不是用点差的移动来进行交易决策。你要坚持你的方法，在一笔交易中，头都到尾都要保持在一个周期表中。
Don't Change Time Frames To Stay In A Losing Trade
Too many times I hear about new traders opening a trade using the 5-minute chart (not my favorite approach) and when the market moves against them, they move to the 15-minute chart to justify staying in a little longer, hoping that the market will turn around. Then if the market continues to move against them, they move out to the hourly chart to look for a reason to stay in the trade. As the market continues to move against them, they shift to the daily chart to hope to find a reason to stay in the trade. The next step is to get a margin call because they have no funds left to maintain their position.
Of course, the main issue here is that they were looking for a way to stay in a losing trade rather than closing it out at a small loss. Taking a loss does not mean that you do not know what you are doing. Too many new traders think that losing a trade means that they are losers or that they aren't smart enough to trade. Nothing could be further from the truth though.
Professional traders understand that if they trade, they will have losing trades. That is really the only guarantee in the field of speculation. How you handle those losing trades has as much to do with your success as a trader as any other factor. You don't have to like losing, but you must accept the fact that all trades cannot be winning trades. You have to keep those losing trades small enough to be able to make up for them with your winning trades. Switching time frames to justify staying in a trade is not how you keep your losses small.
Identify your exit point before you get into the trade and stick to it. Judge yourself from month to month rather than on every pip move in the market. Be consistent in your approach and stay in one time frame from the beginning of the trade to the end of the trade.
本文翻译由兄弟财经提供
文章来源：http://www.actionforex.com/articles-library/technical-analysis-articles/weekly-trading-lesson:-don%27t-change-time-frames-to-stay-in-a-losing-trade-2008042243488/