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Graham, Fred, dingo, Tomasz,
Thanks for the input.
I started to write the looping code and realized I was being stupid
(thinking like a BASIC programmer). The ARRAY code only executes once
for all bars already...the whole point of array code in the first place!
--
Terry
| -----Original Message-----
| From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
| Behalf Of Graham
| Sent: Tuesday, September 06, 2005 16:22
| To: amibroker@xxxxxxxxxxxxxxx
| Subject: Re: [amibroker] Re: Conditional include
|
| as they are arrays you will need to use identifiers and for loop to
| see other than the last value
| for(i=1;i<barcount;i++)
| {
| if ( newBuy[i] OR newSell[i] )
|
|
| }
|
|
| --
| Cheers
| Graham
| AB-Write >< Professional AFL Writing Service
| Yes, I write AFL code to your requirements
| http://e-wire.net.au/~eb_kavan/ab_write.htm
|
|
| On 9/7/05, Terry <MagicTH@xxxxxxxxxxx> wrote:
| > Fred,
| >
| > Thanks for replying. That's what I thought (actual last bar as
| changed
| > by newly received RT data).
| >
| > I use it to determine each trade, which in this system, influences
| the
| > following trade. The module in question computes five years of trade
| > statistics so I can see which, of many trade conditions, is
| producing
| > winning or losing trades, by how much and how often these rules
| occur.
| > This is then used to adjust PositionSize for the next trade.
| > --
| > Terry
| >
| > | -----Original Message-----
| > | From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]
| On
| > | Behalf Of Fred
| > | Sent: Tuesday, September 06, 2005 11:18
| > | To: amibroker@xxxxxxxxxxxxxxx
| > | Subject: [amibroker] Re: Conditional include
| > |
| > | Currently executing bar ?! ...
| > |
| > | It's the LAST BAR ... which will change as the system sees new
| > | data. I thought you were wanting to use it this manner i.e. on a
| go
| > | forward basis ... Is that correct or are you wanting to use it in
| > | some other way as well ?
| > |
| > | --- In amibroker@xxxxxxxxxxxxxxx, "Terry" <MagicTH@xxxx> wrote:
| > | > Of course on the {}. I didn't not think about the multiple lines
| of
| > | > code. That explains another error.
| > | >
| > | >
| > | >
| > | > One question: does LastValue() represent the LastValue as
| > | determined by
| > | > the currently executing bar or is LastValue the very last value
| of
| > | the
| > | > array, thus giving the same result every time?
| > | >
| > | >
| > | >
| > | > I guess I can easily test this myself!
| > | >
| > | > --
| > | >
| > | > Terry
| > | >
| > | > -----Original Message-----
| > | > From: amibroker@xxxxxxxxxxxxxxx
| [mailto:amibroker@xxxxxxxxxxxxxxx]
| > | On
| > | > Behalf Of Tomasz Janeczko
| > | > Sent: Tuesday, September 06, 2005 09:56
| > | > To: amibroker@xxxxxxxxxxxxxxx
| > | > Subject: Re: [amibroker] Conditional include
| > | >
| > | >
| > | >
| > | > Hello,
| > | >
| > | >
| > | >
| > | > First, you have to use BRACES, since #include simply "pastes"
| code
| > | from
| > | > external file in the place when
| > | >
| > | > it is used, so you end up with MULTIPLE lines (so they have to
| be
| > | > enclosed in braces.
| > | >
| > | >
| > | >
| > | > Second thing is that your newBuy and newSell are ARRAYS and can
| > | not be
| > | > used in "if" condition
| > | >
| > | > See MOST COMMON MISTAKES:
| > | > http://www.amibroker.com/guide/a_mistakes.html
| > | >
| > | >
| > | >
| > | >
| > | >
| > | > So corrected code would look as follows:
| > | >
| > | >
| > | >
| > | > if ( LastValue( newBuy OR newSell ) )
| > | >
| > | > {
| > | >
| > | > #include <W_Xfactor.afl>
| > | >
| > | > }
| > | >
| > | > else
| > | >
| > | > tradeLevel = trange = 1;
| > | >
| > | >
| > | >
| > | >
| > | >
| > | > However please note that this operates on lastvalue only, not on
| > | > bar-by-bar basis.
| > | >
| > | >
| > | >
| > | > Please read Understanding AFL
| > | >
| > | > http://www.amibroker.com/guide/h_understandafl.html
| > | >
| > | >
| > | >
| > | > to learn how AmiBroker processes array statements.
| > | >
| > | >
| > | >
| > | > If you need bar-by-bar execution you need to write a LOOP.
| > | >
| > | >
| > | > Best regards,
| > | > Tomasz Janeczko
| > | > amibroker.com
| > | >
| > | > ----- Original Message -----
| > | >
| > | > From: Terry <mailto:MagicTH@x...>
| > | >
| > | > To: amibroker@xxxxxxxxxxxxxxx
| > | >
| > | > Sent: Tuesday, September 06, 2005 4:47 PM
| > | >
| > | > Subject: [amibroker] Conditional include
| > | >
| > | >
| > | >
| > | > I would like to conditionally load and execute an Include file
| > | only on
| > | > days when certain conditions are True. I do this with
| ParamToggle
| > | all
| > | > the time since ParamToggle creates a numeric or Boolean
| condition.
| > | Now I
| > | > want to do it only on days when I have a Buy or Sell condition
| > | which is
| > | > in an array and Amibroker complains that array is not allowed in
| > | an if()
| > | > statement. IIf is not acceptable since it is just an assignment
| > | > statement. I don't want to build a loop since the include file
| uses
| > | > arrays.
| > | >
| > | >
| > | >
| > | > Here's the code. Any ideas?
| > | >
| > | >
| > | >
| > | >
| > | >
| > | > if (newBuy OR newSell)
| > | >
| > | > #include <W_Xfactor.afl>
| > | >
| > | > else
| > | >
| > | > tradeLevel = trange = 1;
| > | >
| > | >
| > | >
| > | > Error 6. Condition in IF, WHITEL, FOR statements ahs to be
| Numeric
| > | or
| > | > Boolean type. You can not use array here, please use [] (array
| > | subscript
| > | > operator) to access array elements.
| > | >
| > | > --
| > | >
| > | > Terry
| > | >
| > | >
| > | >
| > | >
| > | >
| > | > 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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