Simple Bull Bear Trading Zone - Amibroker AFL Code

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_SECTION_BEGIN("");

ERayBull= High - EMA(Close,13);
ERayBear= Low - EMA(Close, 13);

Plot(ERayBull,"Bull", colorViolet, styleHistogram|styleThick);
Plot(ERayBear,"Bear", colorOrange, styleHistogram|styleThick);
_SECTION_END();