Re: [amibroker] Help understanding Arrays

["Paul Chivers" <pchivers@xxxxxxxxxxxx>]

Of course, you don't need loops to do what Jerry's doing anyway
BUT!!!
"Buy" is an array of true/false values (ignoring scaling etc) NOT an array of High prices
so Jerry is still going to come unstuck.


  ----- Original Message ----- 
  From: Terry 
  To: amibroker@xxxxxxxxxxxxxxx 
  Sent: Sunday, 15 October 2006 11:47 AM
  Subject: RE: [amibroker] Help understanding Arrays



  The thing you are missing in the below is you have FORGOTTEN to use the subscript in your loop, thus you are setting the ENTIRE ARRAY to True. The last line of your loop should look like this and it will do what you are expecting.



              {

              Buy[i] = H[i];

  }



  Actually, this is technically incorrect because, as Fred said, Buy is a light switch, either 0 or 1. This sets Buy to the High. However it still works because Amibroker treats ANY NON-ZERO Number as true, even a negative one.



  PS: I hope you are taking Fred's advice about not buying at the high ;-)

  --

  Terry

  -----Original Message-----
  From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of laster
  Sent: Saturday, October 14, 2006 11:21
  To: amibroker@xxxxxxxxxxxxxxx
  Subject: [amibroker] Help undestanding Arrays



  Hi,

  Still trying to figure out working with Arrays, and it's apparent there is something I am not getting.

  My understanding of the following is: If in the i bar the cross of the MACD was true, then Buy at the High. However, Amibroker is buying in several circumstances (including when the condition is true).

  Can somebody smarter than me please translate the following formula into English so I can finally get it?

  Thanks a lot again,

  Jerry





  Reason= Cross( MACD(12,26), Signal(9) );

  for( i = 0; i < BarCount; i++ ) 

  {

  if (Reason[i] == True)

              {

              Buy = H;

  }

  }



   

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