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Copy and paste formula below.


======================
Elder's Impulse system
======================
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{ Dr Elder's Impulse system interpretation v1.1}
{ Plot signals on own window below daily chart }
{ http://www.elder.com/MetaStock/Impulse.htm }
{ http://www.metastocktools.com }

{ Variables user-input }
pdsNoEntry:=Input("No entry x periods from last exit",0,21,5);
pdsW:=Input("Weekly EMA periods",1,520,13)*5;
pdsD:=Input("Daily EMA periods",1,252,13);
pdsShort:=Input("Shorter MACD periods",
 1,252,12);
pdsLong:=Input("Longer MACD periods",2,2520,26);
pdsSignal:=Input("MACD trigger signal periods",
 2,252,9);
tradeDelay:=0;

{ Indicators }
EmaW:=Mov(C,pdsW,E);
EmaD:=Mov(C,pdsD,E);
Mac:=Mov(C,pdsShort,E)-Mov(C,pdsLong,E);
MacTrig:=Mov(Mac,pdsSignal,E);
Hist:=Mac-MacTrig;

{ System logic }
Out:={EmaW<Ref(EmaW,-1)
 AND }EmaD<Ref(EmaD,-1)
 AND Hist<Ref(Hist,-1);
In1:=EmaW>Ref(EmaW,-1)
 AND EmaD>Ref(EmaD,-1)
 AND Hist>Ref(Hist,-1);
In:=In1 AND BarsSince(Out)>pdsNoEntry;

{ System signals }
Init:=Cum(In+Out>-1)=1;
InInit:=Cum(In)=1;
flag:=Ref(BarsSince(Init OR In)
 <BarsSince(Init OR Out)+InInit,-tradeDelay);
signals:=(InInit AND Alert(InInit=0,2)
  OR flag AND Alert(flag=0,2))
   -(flag=0 AND Alert(flag,2));

{ Plot }
0;signals

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