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That would explain it - thanks Fred !
Steve
----- Original Message -----
From: "Fred" <ftonetti@xxxxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, January 31, 2006 11:20 AM
Subject: [amibroker] Re: Initializing Variables once at the start of the
program
> If nothing else it's SLOW ... VERY SLOW ... read BETWEEN ONE AND TWO
> ORDERS of MAGNITUDE SLOWER ...
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Steve Dugas" <sjdugas@xxxx> wrote:
>>
>> Hi All,
>>
>> Just curious if anyone feels chatty....
>>
>> I come from MetaStock so I am pretty well acquainted with *its*
> shortcomings, and I have learned about some of WealthLab's
> shortcomings by reading the e-mails of other people. What are the
> shortcomings of TradeStation that make experienced users want to
> abandon it for something else? Thanks very much!
>>
>> Steve
>> ----- Original Message -----
>> From: Tomasz Janeczko
>> To: amibroker@xxxxxxxxxxxxxxx
>> Sent: Tuesday, January 31, 2006 9:40 AM
>> Subject: Re: [amibroker] Re: Initializing Variables once at the
> start of the program
>>
>>
>> Hello,
>>
>> Abandon this way of thinking. You should forget how TS works and
> start thinking array-wise.
>> http://www.amibroker.com/guide/h_understandafl.html
>>
>> It is possible to "maintain" value using static variables but it
> is simpy wrong way of approaching
>> the coding in AB (like using hammer to kill a fly).
>>
>> Once you forget TS and start thinking array-wise you will soon
> discover advantages of it
>> including simplicity of code and MUCH faster execution and new
> possibilities NEVER possible in TS
>> (like portfolio backtesting which would be extremely memory and
> time inefficient if implemented in TS-execution way).
>> <http://babelfish.av.com/babelfish/trurl_pagecontent?
> lp=fr_en&url=http%3A%2F%2Fwww.addictfx.biz%2Farticle-622220-6.html>
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: Mark Fishburn
>> To: amibroker@xxxxxxxxxxxxxxx
>> Sent: Tuesday, January 31, 2006 3:04 PM
>> Subject: Re: [amibroker] Re: Initializing Variables once at
> the start of the program
>>
>>
>> Hi Fred, thanks for this... that is helpful.
>>
>> WHat happens when I am intraday trading. I think this will be
> processed every TICK. Is that correct ?
>>
>> I want to process my historical bars ONCE, then only process
> the bars I haven't processed - the real time bars. SO, when I apply
> my indicator, it will start from bar 0, go to current bar, and then
> ONLY process new bars and new real time ticks from there - like
> Tradestation does.
>>
>> I can't seem to set a variable that maintains it's value - I
> can't initialize it to FALSE on the first bar, and then have it
> increment as I process bars. Is there a way to do that ?
>>
>> Thanks
>>
>> -----amibroker@xxxxxxxxxxxxxxx wrote: -----
>>
>>
>> To: amibroker@xxxxxxxxxxxxxxx
>> From: "Fred" <ftonetti@xxxx>
>> Sent by: amibroker@xxxxxxxxxxxxxxx
>> Date: 01/30/2006 11:49PM
>> Subject: [amibroker] Re: Initializing Variables once at the
> start of the program
>>
>> TradeStation easy language is processed from to top to
> bottom a bar
>> at a time ...
>>
>> AmiBroker AFL is processed from top to bottom with each
> statement
>> being executed ONCE and ONLY ONCE ... NOT ONCE PER BAR ...
>>
>> Unless you build your own Do / While / For Loops and
> subscript the
>> ARRAYS then typically each statement works on the entire
> ARRAY ...
>>
>> For example ...
>>
>> If I write the AFL
>>
>> BS = Ref(H, -1) * 1.001;
>> SS = Ref(L, -1) * 0.999;
>>
>> Buy = C > BS;
>> Sell = C < SS;
>>
>> Then each of the above statements will be evaulated once ...
> not once
>> per bar ...
>>
>> The first statement will cause an array to be built with
> each value
>> along the array being 1.001 * The previous bars high. Once
> this
>> statement is executed or evaluated once it will never be
> executed or
>> evaluated again.
>>
>> The second statement will cause an array to be built with
> each value
>> along the array being 0.999 * The previous bars low.
>>
>> The third and fourth statement evaluate whether buys and
> sells take
>> place over the entire history of data that is being looked
> at ...
>> again by being evaluated ONCE ... NOT ONCE PER BAR ...
>>
>> I came from TS as well ... years and years of it ... it is
> at first
>> difficult to visualize the concept of array arithmetic but
> in time
>> you'll get used to it ...
>>
>>
>>
>> --- In amibroker@xxxxxxxxxxxxxxx, "clarusinnovation"
> <mfishburn@xxxx>
>> wrote:
>> >
>> > Hi,
>> >
>> > I want to initialize a variable CurrentBar at the start of
> my
>> program
>> > once to 0 - meaning I haven't processed this bar yet. (and
> a lot of
>> > other variables I want too)
>> >
>> > I don't know how or where to put the variables so they
> won't get
>> > initialized every time through the program. I want to keep
> their
>> > values as I climb up through the bars.
>> >
>> > each bar that counts up, I want to increment this counter.
>> >
>> > I tried StaticVariables, but they don't seem to work. How
> do I
>> > initialize them ONCE and then increment them from there ?
>> >
>> > Please don't tell me to read the manual, I have been up
> and down
>> it,
>> > reading Understanding AFL, it is taking me days to do the
> simplest
>> > things...... and it isn't working for me. I came from
> Tradestation
>> > and I could understand bar flow, with Ami I don't.
>> >
>> > Please just tell me what to do, and where to put the code.
>> >
>> > I tried initalizing the variable in a #Include_ONCE file,
> that
>> didn't
>> > work.
>> >
>> > Thanks a lot, it is very frustrating.
>> >
>> > Mark
>> >
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Please note that this group is for discussion between users
> only.
>>
>> To get support from AmiBroker please send an e-mail directly
> to
>> SUPPORT {at} amibroker.com
>>
>> For other support material please check also:
>> http://www.amibroker.com/support.html
>>
>>
>>
>>
>>
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>
>
>
> Please note that this group is for discussion between users only.
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> To get support from AmiBroker please send an e-mail directly to
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