趋势捕捉者 (Trend Catcher)

Well we've all heard the saying, the trend is your friend, well the idea behind this system is to try and take advantage of the trend.

The idea is a fairly simple moving average crossing strategy using
1) EMA 34 high and low
2) EMA 50
3) Std. Dev 20 as filter

There are some other EMAs but these arent really important to the strategy.

The Strategy

BUY
when EMA 50 dips below and std. dev is greater than 70. Here the std. dev is being used to filter out bad trades.

The problem is that the filter isnt very good so this is where i really need help to fix. Any other suggestions would also be appreciated.

I dont know anything about programming so i know the coding isnt great. However, I just did some reading which enabled me to do the basic code necessary so if anyone can fix the code that would also be appreciated. I know it says EURUSD but it can be used on any pair however for yen trades the std. dev filter needs to be adjusted to 0.69 rather than 0.0069 for non yen trades

I think the strategy has potential but it needs a better trend filter. Please test and let me know what u think.