Hi All
Can someone point me in the correct direction or advise where I 
am 
going wrong with this formular.
Many 
thanks
Ken
_SECTION_BEGIN("Momentum");
function 
Momentum( array, period )
{
return array - Ref( array, -period 
);
}
Plot( Momentum( ParamField( "Field" ), Param("Period", 10, 1, 
100 ) ),
_DEFAULT_NAME(), ParamColor("Color", ColorCycle ) 
);
r = Momentum ();
Plot( r, " Momentum ", colorBlue | 
styleThick);
Plot( 0,"",colorLightGrey, styleLine, 1);
PlotOHLC( 
r,r,0,r, // set the midpoint of the chart to 0 
"", IIf( r < 0 , 
colorRed ,// color below 0 set to red
colorGreen // color above 0 is 
green
), styleCloud | styleClipMinMax, 0, 0); 
/
_SECTION_END();