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);
