Re: [amibroker] Another PREV example

["jonf" <jonf_ca@xxxx>]

Tomatz, 
 
1)  writing a[i] = something(a[i-1]) is maybe 
nicer but the need to add the FOR-NEXT syntax is less elegant and 
longer. Yes it's more standard for programming language 
but less standard for mathematical formulation of numerical series 
data.
 
2) Also the FOR-NEXT in AFL will have the 
same problem of FOR-NEXT in JScript/VBScript. The efficiency will be 
similar. But an implementation in C++ will be as efficient as any array 
function in AFL.
 
3) This also doesn't mean that loop and array item accessing 
in AFL is useless. It can be used for many other things and will certainly 
accelerate system development if we don't have to go into JScript, VBScript 
or C++.
 
Sorry Tomatz, but I couldn't stop 
myself to answer !
Thanks again for taking the time to respond !
 
Jon 
<BLOCKQUOTE 
>
----- Original Message ----- 
<DIV 
>From: 
Tomasz Janeczko 

To: <A title=amibroker@xxxxxxxxxx 
href="">amibroker@xxxxxxxxxxxxxxx 
Sent: Friday, September 07, 2001 3:09 
PM
Subject: Re: [amibroker] Another PREV 
example

Dear Jonf,
 
If I wanted to implement a PREV-like 
functionality I would simply
add just FOR-NEXT iteration and the wayto 
access individual array elements.
 
Don't you think that writing a[ i ] =something( 
a[ i - 1 ] ) is both nicer and
more "standard-looking" way?
 
Anyway - DevKit is on the way so stay 
tuned.
 
Best regards,Tomasz Janeczko===============AmiBroker - the 
comprehensive share manager.<A 
href="">http://www.amibroker.com
<BLOCKQUOTE 
>
----- Original Message ----- 
<DIV 
>From: 
jonf 
To: <A 
title=amibroker@xxxxxxxxxxxxxxx 
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Friday, September 07, 2001 
8:16 PM
Subject: Re: [amibroker] Another 
PREV example

Tomatz, 
 
I agree that it's against the execution model of AFL and I 
can imagine the amount of work required to change the execution model. For 
this reason, it's not worthwhile changing 
it.
But I disagree that a linear implementation of 
PREV in C is less efficient or simpler than using JScript/VBScript 
! 
 
In any case, unless other user want to pursue in this 
discussion, there is no point of continue this thread. 

I appreciate the way AmiBroker is 
implemented now and I am anxious to see version 3.8 when DevKit will provide 
a way to implement anything we want at the speed only limited to the C/C++ 
efficiency.
 
Thanks again !
 
Jon.