Re: [amibroker] Help with buy formula

["M. Smith" <ink@xxxxxxxxx>]

I loaded this formula and it gave me an error message.  "condition 10=c<increase AND Ref(c,-1)>ref increase. Message was variable 'increase' used without having been initialized.  Can you help me out, Please.   Marshall
  ----- Original Message ----- 
  From: professor77747 
  To: amibroker@xxxxxxxxxxxxxxx 
  Sent: Sunday, December 10, 2006 3:23 PM
  Subject: [amibroker] Help with buy formula


  When I backtest my formula, all the buys and sells are shown 
  correctly except one. I cannot figure out what is wrong. Here is the 
  buy and sell code: 
  //Buy Signals 

  Condition1 = C > Dropline AND Ref(C,-1) < Ref(Dropline,-1); 
  Cond1=StochK() - Ref(StochK(),-1) >1; 
  Cond2=MACD() > Ref(MACD(),-1); 
  Cond6=StochD()<25; 
  Cond7=BarsSince(Cond6) <=7; 

  //Sell Signals 

  Condition10 = C < Increase AND Ref(C,-1) > Ref(Increase,-1); 
  Cond11=StochK() - Ref(StochK(),-1) < 1; 
  Cond12=MACD() < Ref(MACD(),-1); 
  Cond16=StochD()>75; 
  Cond17=BarsSince(Cond16) <=7; 

  //Buy and Sell orders 

  Buy = BarsSince(Condition1) <=5 AND Cond1 AND Cond7; 
  Sell = BarsSince(Condition10) <=5 AND cond11 AND Cond17; 

  //Short and Cover conditions 

  Short = Sell; 
  Cover=buy; 

  Graham wrote the code for the Condition1 and Condition10. It plots an 
  arrow on the graph so I know that it works. I have checked the 
  stochastic and macd for the buy in question and these are the 
  figures: 

  3/10 Stok = 20.06 
  3/13 Stok = 26.42 
  3/14 Stok = 34.98 

  3/13 Macd = -1.74 
  3/14 Macd = -1.54 
  3/14 Green up arrow 

  The formula should have covered my short and placed a buy. 

  It held my short and did not place a buy. 

  Everything else is perfect except that one day. I have backtested 
  from 9/2/05 and have 12 trades. 

  Thanks, 
  Tom



   
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