{Notes: February 1999 - TASC-article (see also TRADERS' TIPS)}
Enter Long:

thresh:= {omit whipsaw} 4;
k:= {roc comparison period} 3;
m:= {cycle period} 63;
hld:= {maximum period holding position} 10;
Value1:= {volatility}
Stdev(Mov(C,m,S)-Mov(C,m+k,S),20);
Value2:= {roc, relative comparison ratio}
Mov(C,m,S)-Mov(C,m+k,S);
tv1:= thresh*Value1;
Value2>tv1

Close Long:

thresh:= {omit whipsaw} 4;
k:= {roc comparison period} 3;
m:= {cycle period} 63;
hld:= {maximum period holding position} 10;
Value1:= {volatility}
Stdev(Mov(C,m,S)-Mov(C,m+k,S),20);
Value2:= {roc, relative comparison ratio}
Mov(C,m,S)-Mov(C,m+k,S);
tv1:= thresh*Value1;
Ref(Cross(Value2,tv1),-hld)

Enter Short:

thresh:= {omit whipsaw} 4;
k:= {roc comparison period} 3;
m:= {cycle period} 63;
hld:= {maximum period holding position} 10;
Value1:= {volatility}
Stdev(Mov(C,m,S)-Mov(C,m+k,S),20);
Value2:= {roc, relative comparison ratio}
Mov(C,m,S)-Mov(C,m+k,S);
tv1:= thresh*Value1;
Value2<tv1

Close Short:

thresh:= {omit whipsaw} 4;
k:= {roc comparison period} 3;
m:= {cycle period} 63;
hld:= {maximum period holding position} 10;
Value1:= {volatility}
Stdev(Mov(C,m,S)-Mov(C,m+k,S),20);
Value2:= {roc, relative comparison ratio}
Mov(C,m,S)-Mov(C,m+k,S);
tv1:= thresh*Value1;
Ref(Cross(tv1,Value2),-hld)