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Herman,
Where are you going with Table functionality? I ask because I am very interested. Are you suggesting something like
Column: Symbol
Row: Barindex
Value: PositionScore
I'd really love to easily get my hands on porfolio trading info like which positions are on, how many bars ago they were put on as I would like to switch scoring routines based on how long a position has been on.
Have you been messing with any of this stuff????
Kind Regards,
GaryHerman van den Bergen <psytek@xxxxxxxx> wrote:
Tomasz,
Please forgive my ignorance but I totally seem to miss the significance of dynamic variables... Unless you can convince me otherwise I think I would have preferred to see the introduction of traditional multidimensional tables that can be used in standard math routines...why is this better or more versatile in the field of technical analysis? ... I have lots lots of questions:
1) Can dynamic variables be used to implement multidimensional random access tables, like TableA(k,i,j) ?
2) Are there any limits to the number of dynamic variables we can create?
3) Can dynamic variables handle only arrays or also numbers and strings, if so how to define one or the other?
4) Can we use multiple 'subscripts' like SetVar("VarA"+i+j+k, somenumber) to simulate tradional tables?
5) Is there any way to save them on disk?
6) Could you give a non-trivial example/application?
many thanks for any light you can shed on this!
herman.
-----Original Message-----From: Tomasz Janeczko [mailto:amibroker@xxxxxx]Sent: Saturday, July 10, 2004 5:37 PMTo: amibroker@xxxxxxxxxxxxxxxSubject: Re: [amibroker] Question on VarSet and VarGet for Tomasz and programming gurus
Gary,
One example (trivial) application:
instead of writing:
C1 = Ref( C, -1 );
C2 = Ref( C, -2 );
C3 = Ref( C, -3 );
C4 = Ref( C, -4 );
C5 = Ref( C, -5 );
C6 = Ref( C, -6 );
C7 = Ref( C, -7 );
C8 = Ref( C, -8 );
C9 = Ref( C, -9 );
You can now write single line that will have the same effect
for( i = 1; i < 10; i++ ) VarSet( "C"+i, Ref( C, -i ) );
Best regards,Tomasz Janeczkoamibroker.com
----- Original Message -----
From: Gary A. Serkhoshian
To: amibroker@xxxxxxxxxxxxxxx
Sent: Saturday, July 10, 2004 11:17 PM
Subject: [amibroker] Question on VarSet and VarGet for Tomasz and programming gurus
Tomasz,
For us non-programmers, I get the sense of importance that VarSet and VarGet offer, but not in the practical sense.
For PT, is there a way to find out which positions are open, what there positionscores are, etc. using these functions.
I'm sure you have some very practical reasons for offering such functionality, but I'm not seeing it.
Thanks,
Gary
Tomasz Janeczko <amibroker@xxxxxx> wrote:
Correct Dimitris. StaticVarSet / StaticVarGet.Best regards,Tomasz Janeczkoamibroker.com----- Original Message ----- From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxxxxxxx>To: <amibroker@xxxxxxxxxxxxxxx>Sent: Saturday, July 10, 2004 10:30 AMSubject: [amibroker] Re: Static variables> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx> > wrote:> > Hello,> > > > I received the following two questions by support channel> > and thought that reply may interest more people:> > > > Q1. What is the difference between StaticSetVar("x",5); and > x=5;> > > Tomasz,> I suppose you mean StaticVarSet("x",5).> Dimitris Tsokakis> > A1: Read me says:> > ** Static
variable - the variable has static duration (it is > allocated when the program begins and deallocated when the program> > ends)> > and initializes it to Null unless another value is specified. > Static variables allow to share values between various formulas.> > Only NUMBER and STRING static variables are supported now (not > ARRAYS).> > > > So, speaking about the difference> > x=5; is regular variable that "lives" only DURING execution of the > formula.> > > > StaticSetVar("x",5);> > - gives you an access to static data storage that REMAINS between > execution of formulas (as long AmiBroker is running)> > and is accessible from ANY formula.> > You can call StaticGetVar("x") from a DIFFERENT formula and you > will get the value set from another formula.> > > > So Static variables are BOTH persistent (as
long as AmiBroker is > running) and global (in "wider" scope - between different formulas)> > > > Static variables can be used instead of external files to store > values between formula invocations.> > > > > > -----------> > Q2. Can I access vars that are defined in a DLL by using > StaticVarGet?> > > > A2: Only if you create them using StaticVarSet.> > (You can call StaticVarSet from DLL using gSite.CallFunction)> > > > > > Best regards,> > Tomasz Janeczko> > amibroker.com> > > > > Check AmiBroker web page at:> http://www.amibroker.com/> > Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html > Yahoo! Groups Links>
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