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I noticed some strange effect moving the graphs one bar
forward.
The red curve is not the same, especially on the left side of
the graph.
Do we have here an undesirable resonance effect ?
How could I avoid this ?
Dimitris Tsokakis
I used the following code to compare EMA with its
"Echo"
n=20<FONT
face="Times New Roman">;
output1[ 0 ] = Close[
0 ];output1[ <FONT
size=2>1 ] = Close[ <FONT
size=2>1
];
output2[ 0 ] = Close[
0 ];output2[ <FONT
size=2>1 ] = Close[ <FONT
size=2>1
];
f = 2/(n+<FONT
size=2>1<FONT
face="Times New Roman">);<FONT
face="Times New Roman">
for( i = 2<FONT
face=Verdana size=2>; i < BarCount; i++
)
{
output1[ i ] = f * Close[ i ] + (1<FONT
size=2> - f) * output1[ i - 1<FONT
face=Verdana size=2> ];<FONT
face="Times New Roman">
output2[ i ] = f * Close[ i ] + (1<FONT
size=2> - f) * output2[ i - 2<FONT
face=Verdana size=2> ];
}<FONT face=Verdana
size=2>
Plot(Output1,"EMA"<FONT
size=2>,1,<FONT
size=2>1<FONT
face="Times New Roman">);<FONT
face="Times New Roman">
Plot(Output2,"ECHO
EMA",4,<FONT
size=2>1<FONT
face="Times New Roman">);
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