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We usually express an MA or an EMA or a DEMA as a function of
Close.
The inverse functions are interesting in T/A
studies.
Paste in an indicator builder window the verification
formula
// Inverse functions, by D. Tsokakis, Aug
2003
p=20;fp=<FONT
size=2>2/(p+1<FONT
face=Verdana size=2>);<FONT
face="Times New Roman">
CloseviaMA=p*MA<FONT
size=2>(C,p)-(p-1)*<FONT
size=2>Ref(MA<FONT
size=2>(C,p-1),-<FONT
size=2>1);//
[1]
CloseviaEMA=0.5*((P+<FONT
size=2>1)*EMA<FONT
size=2>(C,P)-(P-1)*<FONT
size=2>Ref(EMA<FONT
size=2>(C,P),-1<FONT
face="Times New Roman">));// [2]
CloseviaDEMA=(DEMA<FONT
size=2>(C,p)+(1-fp)*fp*<FONT
size=2>Ref(EMA<FONT
size=2>(C,p),-1)-(<FONT
size=2>1-fp)*Ref<FONT
size=2>(DEMA(C,p),-<FONT
size=2>1))/((2<FONT face=Verdana
size=2>-fp)*fp);// [3]<FONT
face=Verdana size=2>
Plot(C,"CLOSE"<FONT
size=2>,1,<FONT
size=2>1<FONT
face="Times New Roman">);<FONT
face="Times New Roman">
Plot(CloseviaMA,<FONT
size=2>"CloseviaMA",5<FONT
size=2>,1<FONT
face="Times New Roman">);<FONT
face="Times New Roman">
Plot(CloseviaEMA,<FONT
size=2>"CloseviaEMA",7<FONT
size=2>,1<FONT
face="Times New Roman">);<FONT
face="Times New Roman">
Plot(CloseviaDEMA,<FONT
size=2>"CloseviaDEMA",4<FONT
size=2>,1<FONT
face="Times New Roman">);
As an application
you may have the nextbarClose as a function of nextbarMA or nextbarEMA or
nextbarDEMA.
<FONT
face="Times New Roman">Example:
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