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 Something along these lines should 
work:   plot(iif(barindex() >= barcount - 20, x, null), "", 
colorblue, stylethick); 
  ----- Original Message -----  Sent: March 13, 2010 6:51 PM Subject: [amibroker] MTMACD and time 
  band I 
  got the following code from Thomasz article on MTF.
 Count = 0;
 result = 
  0;
 for( i = 10; i <= 300; i++ )
 {
 TimeFrameSet( i * 
  in1Minute );
 m = MACD(12, 26 );
 TimeFrameRestore();
 m = IIf( TimeFrameExpand( m, i * in1Minute 
  ) > 0, 1, -1 );
 result = result + m;
 Count++;
 }
 AddToComposite( result / Count, "~MACD"+Name(), "X" 
  );
 Buy=1;
 x = Foreign("~MACD"+Name(),"C");
 Plot( x, "MTMACD", 
  colorBlue , styleThick ) ;
 PlotGrid(0.5 );
 PlotGrid(-0.5);
 
 I want 
  to use it for plotting only for a month from the last trading day instead of 
  all data. Though I know functions BeginValue and EndValue are there. I am not 
  sure of how to use it? Can some point me modifying this in that direction, 
  please.
 
 
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