I have written the following well-known indicator and saved it in the
"Custom" folder as
"Elder Bull Power.afl"
function ElderBullPower(
period )
{
return High - EMA(Close, period);
}
Plot(
ElderBullPower( Param("Period", 20, 1, 100 ) ),_DEFAULT_NAME(),
ParamColor("Color",
ColorCycle ), styleNoTitle |
ParamStyle("Histogram style", styleHistogram | styleNoLabel,
maskHistogram ) );
I am having difficult using this indicator as part
of system written in a differnet formula
file in the Systems
folder.
I get a syntax error when using the below:
Buy =
ElderBullPower(20) < 0;
It appears that the function is not
known.
This is my attempt at wriing a custom indicator and using it as
part of system, so I'm sure
I'm missing something
fundemental...
Can any one see a problem?