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I don't understand...if you want a=1 initialized once only, at AB startup,
then you should use a Static variable for "a", other variables have no
memory of past executions so they are initialized at each pass; there is no
way around that.
herman
-----Original Message-----
From: Ara Kaloustian [mailto:ara1@xxxxxxxxxx]
Sent: Monday, August 09, 2004 11:01 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Variables not initialized
Herman
Thanks...
I went thru your code ... bottom line ... it provides a solution for me
...
but here are some observations.
IsEmpty() works OK with uninitialized STATIC variables, but not with
regular AFL variables.
Ara
//This line works OK
if( IsEmpty(StaticVarGet("IsInitialized7")))
{
a=1;
}
//This Line generates error "variable NOT initialized"
if( IsEmpty(IsInitialized3))
{
b=1;
}
----- Original Message -----
From: "Herman van den Bergen" <psytek@xxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Monday, August 09, 2004 7:09 PM
Subject: RE: [amibroker] Variables not initialized
> Ara, if i understand you correctly then you need to use StaticVariables.
>
> I use one called "IsInitialized", like below. Here i initialize
> Staticvariables only once at the AB startup or first run of the code.
> Instead of Static variables you can initialize standard afl variables
> between the curly brackets. Just remember to keep the last one that sets
> IsInitialized to one.
>
> take care,
> herman
> GlobalReset = Param("GlobalReset",0,0,1,1);
> if( IsEmpty(StaticVarGet("IsInitialized")) OR GlobalReset )
> {
> StaticVarSetText("TickString","");
> StaticVarSet("LastTickPrice",LastValue(C));
> StaticVarSet("LastBarNum",BarCount);
> StaticVarSet("DownTicks",0);
> StaticVarSet("UpTicks", 0);
> StaticVarSet("SecondTimer", GetSecondNum());
> StaticVarSet("NumTicks",0);
> StaticVarSet("IsInitialized",1);
> }
>
>
> --------------------------------------------------------------------------
--
> ----
>
> -----Original Message-----
> From: Ara Kaloustian [mailto:ara1@xxxxxxxxxx]
> Sent: Monday, August 09, 2004 9:37 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Variables not initialized
>
>
> Herman,
>
> I also initialize my variable to 0 ..... but I don't want to do it the
> "normal" way ...
>
> if I initialize to Null, (or anthing else) then AB will initialize to
> Null
> for every time the code executes.
>
> Last_BuyState = Null;
>
> IsNull(Last_BuyState) ... the result will always be True.
>
> I am trying to have a scheme where I set variables only once when AB
is
> first turned on
>
> if (IsNull(Last_BuyState)
> {
> //initialize variable
> Last_BuyState = Null;
> }
>
> ... else no action
>
> Any way of working that?
>
> Ara
>
>
> ----- Original Message -----
> From: "Herman van den Bergen" <psytek@xxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Monday, August 09, 2004 6:02 PM
> Subject: RE: [amibroker] Variables not initialized
>
>
> > Before using any variable you can initialize it to NULL, you can do
this
> as
> > the top of your code for all variables that need separate
> initialization.
> > then later you can check and know the variable is not initialized
when
> its
> > value is NULL. I always initialize all my variables to either zero
or
> NULL.
> > Null is nice for signals that will be plotted, as NULL doesn't plot.
You
> can
> > check for NULL in various ways:
> >
> > You have to remember that arrays can be partly initialized... to see
if
> an
> > array contains any NULLs you can use: Cum(Array == NULL) > 0
> >
> > best regards,
> > herman
> >
> >
> >
> >
> > -----Original Message-----
> > From: Ara Kaloustian [mailto:ara1@xxxxxxxxxx]
> > Sent: Monday, August 09, 2004 8:48 PM
> > To: AB-Main
> > Subject: [amibroker] Variables not initialized
> >
> >
> > When I use the line below I get an error that "Variable ... is not
> > initialized" ... which is correct
> >
> > Null_Test =
>
>
> >
> > Looking for a way to do same test for uninitialized variables,
such
as
> >
> > Init_Test = IsNotInit(Last_BuyState));
> >
> > "IsNotInit" function does not exist ... is there a workaround for
> this?
> >
> >
> >
> > Would like to be able to do this:
> >
> > if (IsNotInit(Last_BuyState)) {Last_BuyState = Null; } // or any
> other
> > value
> >
> > This will allow me to initialize variables when first starting
program
> > without having to make an assignments that repeats every cycle thru
the
> code
> >
> >
> >
> > Thanks
> >
> >
> >
> > Ara
> >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > Check AmiBroker web page at:
> > http://www.amibroker.com/
> >
> > Check group FAQ at:
> > http://groups.yahoo.com/group/amibroker/files/groupfaq.html
> >
> >
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