Re: [amibroker] Time required for functions

["Ara Kaloustian" <ara1@xxxxxxxxxx>]

Tomasz,

 

I thought Quick AFL would adjust the number of bars to what is necessary.

 

I assume I need the same number of bars to compute indicators, regadless of time frame.

 

If my assumption is correct, then why does the number of bars increase?

 

Thanks

 

Ara

----- Original Message -----

From: Tomasz Janeczko

To: amibroker@xxxxxxxxxxxxxxx

Sent: Thursday, February 12, 2009 2:06 PM

Subject: Re: [amibroker] Time required for functions

There are less 15 min bars than 5 min bars. That's why.

 

When using LinRegIntercept make sure to use latest version (5.20) and if only possible

use scalar "period" (i.e. constant) - as it allows to internally enable certain optimizations that make function much faster.

Best regards,
Tomasz Janeczko
amibroker.com

----- Original Message -----

From: Ara Kaloustian

To: AB-Main

Sent: Thursday, February 12, 2009 9:58 PM

Subject: [amibroker] Time required for functions

When I switch time frames, the amount of time required per function changes drastically. Anyone understand why?

 

Execution times from    GetPerformanceCounter( )    function

 

 

Example:

 

Function                                  5 min Bars             15 min Bars

 

LinRegIntercept                         0.524 ms                  0.176 ms

 

 

ara

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