[amibroker] Multi MA with Shift

[Martin Cooney <martin@xxxxxxxxxxxxx>]

Hi,

I've posted the below code in case anyone else like me is starting out
and notice some of the indicators installed by AB are a little lacking.
Being used to Metatrader and now starting to use AB for a particular
divergence strategy, I noticed I didn't readily have MA types with
period shift. (Special thanks to Ara Kaloustian for his divergence
indicator - powerful stuff)

[1] I quickly coded the below and wondered if I could make improvements
and/or cut down any on the repetition

[2] Does AB have an equivalent of a SWITCH / CASE function which might
cut down on the IF / ELSE statements as well as speed up the code ?

====code start====
P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 400, 1, 10 );
MAType = ParamList("MA Type", "Simple MA|Exponential MA|Weighted
MA|Wilder's Smoothing|Double EMA|Triple EMA" ,1);
MAshift = Param( "Shift", 0, -25, 0, 1 );

if (MAType == "Simple MA")			
{
Plot( Ref(MA( P, Periods ), MAshift), _DEFAULT_NAME(), ParamColor(
"Color", colorCycle ), ParamStyle("Style") );
}
else
if (MAtype == "Exponential MA")
{
Plot( Ref(EMA( P, Periods ), MAshift), _DEFAULT_NAME(), ParamColor(
"Color", colorCycle ), ParamStyle("Style") );
}
else
if (MAType == "Weighted MA")
{
Plot( Ref(WMA( P, Periods ), MAshift), _DEFAULT_NAME(), ParamColor(
"Color", colorCycle ), ParamStyle("Style") );
}
else
if (MAType == "Wilder's Smoothing")
{
Plot( Ref(Wilders( P, Periods ), MAshift), _DEFAULT_NAME(), ParamColor(
"Color", colorCycle ), ParamStyle("Style") );
}
else
if (MAType == "Double EMA")
{
Plot( Ref(DEMA( P, Periods ), MAshift), _DEFAULT_NAME(), ParamColor(
"Color", colorCycle ), ParamStyle("Style") );
}
else
if (MAType == "Triple EMA")
{
Plot( Ref(TEMA( P, Periods ), MAshift), _DEFAULT_NAME(), ParamColor(
"Color", colorCycle ), ParamStyle("Style") );
}
====code end====

Cheers
Martin



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