N1:=5; N2:=10; N3:=20; K:=5; N:=26; P:=2; IF (k<=0) RETURN 0; MA$1:MA(CLOSE, N1); IF (k<=1) RETURN 0; MA$2:MA(CLOSE, N2); IF (k<=2) RETURN 0; MA$3:MA(CLOSE, N3); MID : MA(CLOSE,N); UPPER: MID + P*STD(CLOSE,N); LOWER: MID - P*STD(CLOSE,N);
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