PVT & EMA for Amibroker (AFL)

_SECTION_BEGIN("PVT");
function PVT()
{
	return Cum( Volume * ROC( C, 1 ) * 0.01 );
}

Plot( PVT(), _DEFAULT_NAME(), ParamColor( "Color", ColorCycle ) );
_SECTION_END();

PVTMA = Wilders( PVT(), 20 );
colOpn = IIf( PVTMA > Ref( PVTMA, -1 ), colorGreen, colorRed );
Plot( Wilders( PVT(), 20  ),"",colOpn,styleLine );

PVTMA = Wilders( PVT(), 10 );
colOpn1= IIf( PVTMA > Ref( PVTMA, -1 ), colorBlue, colorRed );
Plot( Wilders( PVT(), 10  ),"",colOpn1,styleLine );