[amibroker] Plotting Horizontal Lines

[Bill Halliday <halliday_mo@xxxxxxxxx>]

I'm trying to plot a horizontal line on an Intraday Price Chart. Here is the formula I'm using:
   
  TodaysMidPoint = ( YesterdaysHigh + YesterdaysLow + YesterdaysClose) / 3 ;
  // Don't worry Yesterdays Values are being calculated!
   
  Here is how I'm plotting it:
   
  PlotGrid( LastValue( TodaysMidPoint ) , colorDarkRed ) ;
   
  When I apply the indicator to the Price Chart, it doesn't show. When I apply the indicator to a blank window, the horizontal line shows.
   
  Do you know what I'm doing wrong? I have tested changing the Grid parameters, but to no avail. Maybe I missed it?
   
  I would, also, like to plot these as solid lines, does anyone know how to plot the grids as solid lines?
   
  Thanks,
   
  Chester

 
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