I have run a scan and a backtest with you code.
//////////////////////////////////////////////
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 ) );
Buy = ElderBullPower(20) < 0;
Sell = ElderBullPower(20) > 0;
/////////////////////////////////////////
AFL is fine and runs without any hitch. Are you using any other conditions?
From: cgrafham
Sent: Friday, July 11, 2008 1:07 PM
To: [email protected]
Subject: [amibroker] Newbie Custom Indicator Question
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?
