Strategy Logic Description
This strategy is using natr and ema indicator.
For natr indicator there is two indicator time period, "fast" natr is
14, and "slow" natr is 30.
And for ema indicator the time period is 50.
Trend is determined by ema indicator, and natr indicator is used as a
trigger to enter buy/sell.
If current bidbar open price is below ema indicator then the trend is
bearish, and if above ema indicator then the trend is bullish.
When the fast natr crossed the slow natr we will enter trade.
There is also a logic to check that the ema is going up/down to enter
buy/sell and flip side when losing.
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