Rank: Advanced Member
Groups: Registered, Registered Users
Joined: 4/27/2005(UTC)
Posts: 126
Location: Italy
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When running the following system test based on the "EMA - Slope" formula in www.metastocktools.com:
"pds:=21;
x:=4;
x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,V,If(x=6,P,C)))));
EMA:=Mov(x,pds,E);
EMAprev:=Ref(EMA,-1);
y:=Min(EMA,EMAprev)/Max(EMA,EMAprev);
EMAratio:=(If(EMA>EMAprev,2-y,y)-1)*100;
EMAper:=If(EMAratio<0,Atan(EMAratio,1)-360,
Atan(EMAratio,1))*10/9;
signal:=Mov(EMAper,pds,E);
LE:=Cross(EMAper,signal);
SE:=Cross(signal,EMAper) ;
LX:=0;
SX:=0;
....."
I received the following error message: "Period value out of valid range in Mov() function" . Could somebody suggest a soluion for this type of problem?
Thanks in advace and kind regards.
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Rank: Advanced Member
Groups: Registered, Registered Users
Joined: 1/19/2005(UTC)
Posts: 1,065
Location: Koh Pha-Ngan, Earth
Was thanked: 2 time(s) in 2 post(s)
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That error will appear on stocks where there is insufficient data to calculate the EMA - for example, when trying to calculate a 21-period EMA with only 20 bars of available data.
Also make sure that you set your exploration records loaded to match your chart's loaded periods.
MetaStock -> Tools -> The Explorer -> Options -> Load 2500 Records -> Ok.
jose '-)
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