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Enter Long = Close Short

BBHistogram:= (CLOSE + 2*Std(CLOSE,20) - Mov(CLOSE,20,SIMPLE)) / (4*(Std(CLOSE,20))) * 100;
Cross(0,BBHistogram)


Enter Short = Close Long

BBHistogram:= (CLOSE + 2*Std(CLOSE,20) - Mov(CLOSE,20,SIMPLE)) / (4*(Std(CLOSE,20))) * 100;
Cross(BBHistogram,100)