Hello,
No you are not allowed to run scripting host code within
conditional _expression_.
The Microsoft SCRIPTING host is INDEPENDENT, i.e. it executes
on its own,
in parallel and its "global" parts are simply extracted
from the formula and run unconditionally
before actual AFL execution.
If you need to call something in script conditionally you have
two choices:
a) either write condition in JScript/_vbscript_
OR
b) write a FUNCTION in JScript/_vbscript_ and call that function
conditionally from AFL level
as shown below:
EnableScript( "jscript" );
<%
// NO global
code, only function definition
function
DoTheJob()
{
AB = new ActiveXObject( "Broker.Application" );
AA = AB.Analysis;
}
%>
Test = 4;
if( Test ==
4
)
{
scr = GetScriptObject();
scr.DoTheJob();
}
Best regards,
Tomasz
Janeczko
amibroker.com
----- Original Message -----
Sent: Tuesday, May 12, 2009 7:36 AM
Subject: [amibroker] Re: How to pass
variables from AFL to embedded JScript?
Okay,
this is bizarre. I am testing out some embedded JScript for a related
application to what I posted earlier. This one is not happening within the AA,
but is nonetheless still inside an AFL.
The following simple code is
fine, and does not generate a syntax error:
//Test = 4;
//if ( Test == 4
)
//{
EnableScript( "jscript" );
<%
AB = new ActiveXObject( "Broker.Application" );
AA = AB.Analysis;
%>
//}
However, if I uncomment all the
"//" I get a syntax error.
Are
we not allowed to call a JScript inside an IF block? If not, why the heck not?
And if we are allowed, why would it be generating a syntax error in
this simple case?
The error I get is on the "<%" --> probably missing semi colon on previous
line.
But the semi colon is clearly there.
Anyone's two
cents appreciated.
--- In amibroker@xxxxxxxxxxxxxxx,
"ozzyapeman" <zoopfree@xxx> wrote:
>
> Thanks for that
tip.
>
> Guess I will have to write a WF type routine in JScript
and call each optimize individually, from outside AA.
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" groups@
wrote:
> >
> > During any AA operation in progress, you must
not
> > use Analysis object to start another AA operation
>
> (because it is infinite nesting)
> >
> > Analysis
object may only be used from OUTSIDE
> > of AA.
> >
> > To run "suboptimization" use THE ONLY supported
> >
way, i.e. Optimizer API (see optimizer.html file in the ADK
subfolder).
> >
> > Best regards,
> > Tomasz
Janeczko
> > amibroker.com
> > ----- Original Message -----
> > From: "ozzyapeman" zoopfree@
> > To:
amibroker@xxxxxxxxxxxxxxx
> > Sent: Tuesday, May 12, 2009 3:11
AM
> > Subject: [amibroker] Re: How to pass variables from AFL to
embedded JScript?
> >
> >
> > > And if there
is no way to pass variables directly from AFL to JScript,
> > >
can I first fput the AFL vars to some kind of log file, and then is
>
> > there a command in JScript that can pull those vars to use for
the
> > > Dates?
> > >
> > > I can also
use _vbscript_, if that makes any difference. I'm just not all
> > >
that knowledgeable about either J or _vbscript_s.
> > >
>
> >
> > >
> > > --- In
amibroker@xxxxxxxxxxxxxxx, "ozzyapeman" <zoopfree@> wrote:
> >
>>
> > >> Hello, hoping someone can help out here. During
a Walk-Forward test, I
> > >> am trying to pass From and To
dates from the WF engine into an
> > > embedded
> >
>> JScript. I essentially want to do a "sub-optimization" as part of
the
> > >> backtest portion of the WF test. However, it seems
that I cannot pass
> > >> variables from the AFL to the
JScript.
> > >>
> > >> Is there any way to pass
the From and To dates into the JScript? Below
> > >> is what I
have. It generates an 'undefined source' error for these
> > >>
lines:
> > >>
> > >>
> > >>
AA.RangeFromDate = FromDateStr;
> > >> AA.RangeToDate =
ToDateStr;
> > >>
> > >>
> > >>
Here is the AFL with embedded JScript:
> > >>
> >
>> FromDateNum = Status( "rangefromdate" );
> > >>
ToDateNum = Status( "rangetodate" );
> > >>
> >
>> FromDate = DateTimeConvert( 2, FromDateNum );
> > >>
ToDate = DateTimeConvert( 2, ToDateNum );
> > >>
> >
>> FromDateStr = DateTimeToStr( FromDate );
> > >>
ToDateStr = DateTimeToStr( ToDate );
> > >>
> >
>>
> > >> EnableScript( "jscript" );
> >
>> <%
> > >>
> > >> Formula =
"F:\\SomeFormula.afl";
> > >> Database = "F:\\AB
Databases\\MyIB";
> > >> Settings = "F:\\Some
Settings.ABS";
> > >>
> > >> AB = new
ActiveXObject( "Broker.Application" );
> > >> AA =
AB.Analysis;
> > >>
> > >> AB.LoadDatabase(
Database );
> > >> AB.ActiveDocument.Name = "EURUSD";
>
> >> AA.LoadFormula( Formula );
> > >>
AA.LoadSettings( Settings);
> > >> AA.ApplyTo = 1;
> >
>> AA.RangeMode = 3;
> > >> AA.RangeFromDate =
FromDateStr; // * ERROR *
> > >> AA.RangeToDate =
ToDateStr;
> > >> AA.Optimize( 0 );
> >
>>
> > >> AA.Export ( "F:\\TestReport1.html" );
>
> >>
> > >> %>
> > >>
> >
>
> > >
> > >
> > >
> >
> ------------------------------------
> > >
> > >
**** IMPORTANT PLEASE READ ****
> > > This group is for the
discussion between users only.
> > > This is *NOT* technical
support channel.
> > >
> > > TO GET TECHNICAL SUPPORT
send an e-mail directly to
> > > SUPPORT {at}
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> > >
> > > TO SUBMIT SUGGESTIONS
please use FEEDBACK CENTER at
> > >
http://www.amibroker.com/feedback/
> > > (submissions sent via
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> > >
> > > For
NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> >
> http://www.amibroker.com/devlog/
> > >
> > >
Yahoo! Groups Links
> > >
> > >
> >
>
> >
>
__._,_.___
**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
TO GET TECHNICAL SUPPORT send an e-mail directly to
SUPPORT {at} amibroker.com
TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
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