Can anyone point me in the right direction regarding Easylanguage? I would like to have the Tradestation Momentum indicator reference volume instead of price. I have replaced "Mom = Momentum( Price, Length )" with "Mom = Momentum( Volume, Length )" (in red text) but when I do this the indicator appears very different on the screen and therefore no good. With this in mind I guess there is more to it? The code is below. Any pointers on this would be appreciated.

Thanks



variables:
intrabarpersist InAChart( false ),
Mom( 0 ),
Accel( 0 ),
ColorLevel( 0 ) ;

once
begin
InAChart = GetAppInfo( aiApplicationType ) = cChart ;
end ;

Mom = Momentum( Volume, Length ) ;
Accel = Momentum( Mom, 1 ) ; { 1 bar acceleration }

Plot1( Mom, !( "Momentum" ) ) ;
Plot2( 0, !( "ZeroLine" ) ) ;

{ gradient coloring }
if UseGradientColoring then
begin
ColorLevel = NormGradientColor( Mom, true, ColorNormLength, UpColor, DnColor ) ;

if InAChart then { study is applied to a chart }
SetPlotColor( 1, ColorLevel )
else { study is applied to grid app }
begin
SetPlotColor( 1, GridForegroundColor ) ;
SetPlotBGColor( 1, ColorLevel ) ;
end ;
end ;

{ alert criteria }
if AlertEnabled then
begin
if Mom > 0 and Accel > 0 then
Alert( !( "Indicator positive and increasing" ) )
else if Mom < 0 and Accel < 0 then
Alert( !( "Indicator negative and decreasing" ) ) ;
end

Stormkicker,

check out the build in volume indicator. Depending on the bar type you are using the reserved word volume won't return the correct value. The volume indicator shows how to get the correct value depending on the bar type.

Regards,

ABCTG