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<SPAN
class=252282800-18032003>Dale,
<SPAN
class=252282800-18032003>
Often
I just guess <G>
<SPAN
class=252282800-18032003>
Help
defines an array as....
What is an
Array?
An array is simply a list (or row) of values.
In some books it may be referred to as a vector. Each numbered row of values in
the example represents an individual array. Amibroker has stored in its database
6 arrays for each stock. One for opening price, one for the low price, one for
the high price, one for the closing price and one for volume (see the rows
labeled 1-5 below) and one for open interest. These can be referenced in <FONT
color=#ffffff >AFL as open, low, high,
close, volume, openint or o, l, h, c, v, oi.
If you are referencing
one of the 6 arrays or making calculations based on them then it is an
array. In your example you used Status to determine what AB was doing
(Scan, Explore etc) Since this state is not stored nor calculated from the
six arrays you must use lastvalue() .
" <FONT color=blue
face=Tahoma size=2><SPAN
>One more thing: Do you
use Amibroker to signal trades with delay = 1 and Price = Open? On the
evening before the trade do you use plots to tell you to trade the next morning
or do you use some formula in the AA and run a Scan or Explore to tell
you?"
<FONT
face=Tahoma>Dale, you have probably forgotten more about system
design than I know but for what it is worth I do
use delay=1 and Price=Open for evaluation and back testing in AA, although in
practice I seldom actual buy the open. I have been burned too many times by this
fickle market. Instead I wait 30 minutes to let the dust settle. Interday I plot
actual signals based on high or low. (delay=o)
<SPAN
class=252282800-18032003>Regards,
jayson
<SPAN
> <FONT
face=Arial size=2>
Jayson
<FONT face=Tahoma
size=2>-----Original Message-----From: dingo
[mailto:dingo@xxxxxxxxxx]Sent: Monday, March 17, 2003 4:23
PMTo: amibroker@xxxxxxxxxxxxxxxSubject: RE: [amibroker]
Code challenge - gurus on your toes!
<SPAN
>Have I tried it? NO
but looks like that is the magic answer!!!
<SPAN
>
<SPAN
>I get totally wrapped
around the axle to this day on what is an array and what is not an
array.
<SPAN
>
<SPAN
>If you have the time
could you explain how this works at the individual bar level? If not I
understand and really appreciate this!! It just might help the little light go
on in my head (yea, right!).
<SPAN
>
<SPAN
>One more thing: Do you
use Amibroker to signal trades with delay = 1 and Price = Open? On the
evening before the trade do you use plots to tell you to trade the next morning
or do you use some formula in the AA and run a Scan or Explore to tell
you?
<SPAN
>
<SPAN
>Thanks Jason!
You are great to be here help us as much as you do!
<SPAN
>
<SPAN
>d
<SPAN
>
<SPAN
>-----Original
Message-----From: Jayson
[mailto:jcasavant@xxxxxxxxxxxx] <SPAN
>Sent: Monday, March 17, 2003 3:56
PMTo:
amibroker@xxxxxxxxxxxxxxx<SPAN
>Subject: RE: [amibroker] Code challenge -
gurus on your toes!
<FONT face="Times New Roman"
size=3>
<FONT color=blue face=Arial
size=2>Dale have
you tried lastvalue(tmpdelay)
<FONT face="Times New Roman"
size=3>
<FONT color=#282828 face=Arial
size=2><SPAN
>
<FONT color=blue face=Arial
size=2>tmpDelay =
<SPAN
>IIf(Status("action")
== 5, 1, 0<SPAN
>);
<FONT color=blue face=Arial
size=2><SPAN
>tmpdelay=<FONT
color=#282828 face=Arial size=2><SPAN
>LastValue<FONT
color=blue face=Arial size=2><SPAN
>(tmpdelay);
<FONT face="Times New Roman"
size=3>
<FONT color=blue face=Arial
size=2>I think
this needs to be a fixed number..
<FONT face="Times New Roman"
size=3>
<FONT color=blue face=Arial
size=2><SPAN
>Jayson
<P class=MsoNormal
><FONT
face=Tahoma size=2><SPAN
>-----Original
Message-----From: dingo
[mailto:dingo@xxxxxxxxxx]Sent:
Monday, March 17, 2003 3:41 PM<SPAN
>To: _amibroker_yahoo<SPAN
>Subject: [amibroker] Code challenge - gurus
on your toes!
<FONT face="Courier New"
size=2>I'm trying to write some AFL code that will
change the trade delays and<FONT face="Courier New"
size=2><FONT
face="Courier New">trade prices based solely on whether the code is being run in
the backtester/optimizer or
not.Here's a feeble attempt
that doesn't work:tmpDelay =
IIf(Status("action") == 5, 1, 0);<FONT
face="Courier New">tmpPrice = IIf(Status("action") == 5, Open,
Close);SetTradeDelays(tmpDelay,
tmpDelay, tmpDelay, tmpDelay);<FONT
face="Courier New">BuyPrice = SellPrice = ShortPrice = CoverPrice =
tmpPrice;Lets see if you can
solve this one! (Use of vbScript is
permissable)<FONT
face="Courier New">d<FONT
face="Courier New" size=2>Send BUG REPORTS to
bugs@xxxxxxxxxxxxx<SPAN
><FONT
face="Courier New">Send SUGGESTIONS to
suggest@xxxxxxxxxxxxx<FONT
face="Courier New">-----------------------------------------<FONT
face="Courier New">Post AmiQuote-related messages ONLY to:
amiquote@xxxxxxxxxxxxxxx (Web page:
<A
href="">http://groups.yahoo.com/group/amiquote/messages/)<FONT
face="Courier New">--------------------------------------------<FONT
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Your
use of Yahoo! Groups is subject to the <A
href="">Yahoo! Terms of
Service. <FONT
face="Courier New" size=2>Send BUG REPORTS to
bugs@xxxxxxxxxxxxx<SPAN
><FONT
face="Courier New">Send SUGGESTIONS to
suggest@xxxxxxxxxxxxx<FONT
face="Courier New">-----------------------------------------<FONT
face="Courier New">Post AmiQuote-related messages ONLY to:
amiquote@xxxxxxxxxxxxxxx (Web page:
<A
href="">http://groups.yahoo.com/group/amiquote/messages/)<FONT
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Your
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Service.
Send
BUG REPORTS to bugs@xxxxxxxxxxxxxSend SUGGESTIONS to
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