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Thanks. I just didn't know you could separate the right side of the
== with commas. That is a new concept for me. Hope it gets through
all this white hair. Is there an explanation of this in the help text
or other C like text?
The intrade = (buy,sell); gave me a syntax check. AFL would not allow
that but it did allow your 0,ai,1 which still blows my mind.
Exrem is OK if you want to trade at the end of the bar or used in
back testing. During live intraday trading it gets all screwed up and
I quit using it in live trading and just look at the conditions of MA
lines or MACD/Sig lines, etc. That does not fail when the positions
of the lines cross multiple times within a bar. But it and maybe
exrem still can give multiple signals which is a huge bother as
trends slowly change directions.
Thanks again,
Barry
--- In amibroker@xxxxxxxxxxxxxxx, "Ara Kaloustian" <ara1@xxx> wrote:
>
> Barry,
>
> ...intrade AND Ref(intrade,-1) == 0 is the condition (when
intrade turned
> from zero to 1)
> ... "ai" is the array address (same as BarIndex() but it is
corrected for
> the effects of Quick AFL)
> ... "1" is the first occurance of the condition stated above.
>
> ExRem should work if used properly, but I have never been able to
use it
> properly ... there are some quircks to it ... I think
>
> Ara
>
> ----- Original Message -----
> From: "Barry Scarborough" <razzbarry@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Tuesday, October 14, 2008 4:52 AM
> Subject: [amibroker] Re: AFL code question - ARA please explain ==
0,ai,1
>
>
> > Ara that's great.
> > But what is == 0,ai,1 in the line
> > buysignal = ValueWhen(intrade AND Ref(intrade,-1) == 0,ai,1);
> > Please explain the syntax. I have never seen that done.
> >
> > Thanks, Barry
> >
> > I had to put an ExRem before (Buy,Sell);
> > To see this work use this example:
> >
> > fMA = MA(C, 4);
> > Buy = fMA > Ref(fMA, -1);
> > Sell = fMA < Ref(fMA, -1);
> > // intrade will become 1 at first signal and stay at that value
until
> > a Sell Signal arrives
> > intrade = ExRem(Buy, Sell);
> > // this will give you the arrayindex value of the Buy Signal.
> > buysignal = ValueWhen(intrade AND Ref(intrade,-1) == 0, ai, 1);
> >
> > Plot(C, "", colorBlack, styleBar);
> > Plot(intrade, "Intrade", colorBlue, styleOwnScale);
> > Plot(buysignal , "buysignal ", colorGreen, styleOwnScale);
> > PlotShapes(Buy * shapeUpArrow, colorGreen, 0, L, -5 );
> > PlotShapes(Sell * shapeDownArrow, colorRed, 0, H, -5 );
> > PlotShapes(intrade * shapeCircle, colorBlue, 0, C , 0);
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Ara Kaloustian" <ara1@> wrote:
> >>
> >> You need to first make sure that you eliminate duplicate signals,
> > so that
> >> they will not affect the valu you save
> >>
> >> Try this:
> >> bi = barindex();
> >> ai = bi - bi[0];
> >> intrade = (Buy,Sell); // intrade will become 1 at first
signal
> > and stay
> >> at that value untill a sell signal arrives
> >> buysignal = valuewhen(intrade and Ref(intrade,-1) ==0,ai,1); //
> > this will
> >> give you the arrayindex value of the buy signal.
> >>
> >> BuyHigh = high[buysignal];
> >>
> >> ----- Original Message -----
> >> From: "richpach2" <richpach2@>
> >> To: <amibroker@xxxxxxxxxxxxxxx>
> >> Sent: Monday, October 13, 2008 10:31 PM
> >> Subject: [amibroker] AFL code question
> >>
> >>
> >> > Hello AB Users,
> >> >
> >> > Can someone explain please, how do I reference a selected value
> > of the
> >> > signal bar?
> >> > For instance if signal bar is when signal=cross( close, ema
> > (close,9))
> >> > then, how do I store "High" of the signal bar for the future
use
> > so, I
> >> > can check if C>"Signal Bar High" occurred in the following
bars?
> >> >
> >> > I looked at BarSince, VarSet, ValueWhen and SelectedValue but,
I
> > am a
> >> > little confused and unsure which one should I use.
> >> >
> >> > Any help or comment will be appreciated.
> >> >
> >> > Regards
> >> > Richard
> >> >
> >> >
> >> > ------------------------------------
> >> >
> >> > **** IMPORTANT ****
> >> > This group is for the discussion between users only.
> >> > This is *NOT* technical support channel.
> >> >
> >> > *********************
> >> > TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail
> > directly to
> >> > SUPPORT {at} amibroker.com
> >> > *********************
> >> >
> >> > For NEW RELEASE ANNOUNCEMENTS and other news always check
DEVLOG:
> >> > http://www.amibroker.com/devlog/
> >> >
> >> > For other support material please check also:
> >> > http://www.amibroker.com/support.html
> >> >
> >> > *********************************
> >> > Yahoo! Groups Links
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> > ------------------------------------
> >
> > **** IMPORTANT ****
> > This group is for the discussion between users only.
> > This is *NOT* technical support channel.
> >
> > *********************
> > TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail
directly to
> > SUPPORT {at} amibroker.com
> > *********************
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> >
> > *********************************
> > Yahoo! Groups Links
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------------------------------------
**** IMPORTANT ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
*********************
TO GET TECHNICAL SUPPORT from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
*********************
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
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