Re: [amibroker] Re: Is there a hash table or dictionary structure accessible from AFL?

[Tomasz Janeczko <groups@xxxxxxxxxxxxx>]

Hello,

VarGet/Set use hash tables internally

Best regards,
Tomasz Janeczko
amibroker.com

On 2010-01-05 17:09, Potato Soup wrote:
> Depends how VarGet is implemented. If it's implemented as O(1) then it should work. A hash should achieve best case of O(1).
> -----Original Message-----
> From: "tuzo_wilson"<j.tuzo.wilson@xxxxxxxxx>
> Date: Tue, 05 Jan 2010 16:04:52
> To:<amibroker@xxxxxxxxxxxxxxx>
> Subject: [amibroker] Re: Is there a hash table or dictionary  structure accessible from AFL?
>
> Can you use dynamic AFL variables to achieve what you want?
>
> value = 10;
> VarSet("myKey", value );
> newValue = VarGet( "myKey" );
>
> As for performance, maybe Tomasz can answer what the "order of" the algorithm is (e.g. O(log n), O(n) )?
>
>
> Tuzo
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Potato Soup"<potatosoupz@xxx>  wrote:
>    
>> I'm looking to check a value each bar to see if it exists in a pre-defined collection of values that I want to store before running the script. The collection is sufficiently large that it would benefit from being stored in a data structure with constant lookup time. Has anyone implemented this in AFL or through a plugin?
>>
>>      
>
>
>
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