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rm=Param<FONT
face="Courier New" size=1>(<FONT face="Courier New" color=#ff00ff
size=1>"",<FONT face="Courier New"
color=#ff00ff size=1>0,<FONT
face="Courier New" color=#ff00ff size=1>0<FONT face="Courier New"
size=1>,BarCount,<FONT face="Courier New" color=#ff00ff
size=1>1);
<BLOCKQUOTE
>
----- Original Message -----
<DIV
>From:
<A title=anthonyvan28@xxxxxxxxxxx
href="">anthony
To: <A title=amibroker@xxxxxxxxxxxxxxx
href="">amibroker@xxxxxxxxxxxxxxx
Sent: Tuesday, July 27, 2004 7:57
AM
Subject: [amibroker] Re: Training
mode.
I've got it!Quick simple anyone can use!It requires
no coding mostly!Just a lot of patients and easy to stuff up or
(cheat).Put a blank page or folder over your screen.But
honestly if it realy does come to that there must be a place to have this
function properly writen in AB.One question about this code, I get-
"Variable 'rm' used without having been initialized."Error in this
code when I installed it.Z = Null;LB =LastValue(BarIndex());O
= IIf(BarIndex()>(LB-RM),Z,O);H = IIf(BarIndex()>(LB-RM),Z,H);L
= IIf(BarIndex()>(LB-RM),Z,L);C = IIf(BarIndex()>(LB-RM),Z,C);//
Just an example
systemStochRsi=EMA((RSI(8)-LLV(RSI(8),8))/(HHV(RSI(8),8)-LLV(RSI(8),8)),3)*100;Buy=Cross(17,StochRsi)
AND Ref(MA(C,21),-1) <
MA(C,21);;Sell=Cross(StochRsi,83);Short=Cross(StochRsi,83) AND
Ref(MA(C,21),-1) >
MA(C,21);Cover=Cross(17,StochRsi);Plot(C,"Close",2,1);PlotShapes(IIf(Buy,shapeUpArrow,IIf(Short,shapeDownArrow,shapeNone)),IIf(Buy,colorBrightGreen,IIf(Short,colorRed,colorBlack)));Thanks
Ant.--- In amibroker@xxxxxxxxxxxxxxx, "Dave Merrill"
<dmerrill@xxxx> wrote:> And I *know* I said, at that time,
and quoted again below, that zeroing> every indicator yourself
requires recoding every indicator on every pane you> want to do
this with.> > Can it be done? Of course, especially if there's
one particular indicator> set you're interested in exploring this
way.> > Would a simple built-in
blanking-of-N-bars-at-the-end-of-the-data feature be> better? I
think so, and thought so when I brought it up a while ago. That's>
all I was trying to say.> > Dave> I thought I
also answered that you just have to make the indicators Null> as
well> > > > StochRsi=
IIf(BarIndex()>(LB-RM),Z,>
EMA((RSI(8)-LLV(RSI(8),8))/(HHV(RSI(8),8)-LLV(RSI(8),8)),3)*100 );>
> > > Cheers,>
Graham> <A
href="">http://e-wire.net.au/~eb_kavan/>
> -----Original Message-----> From: Dave
Merrill> Sent: Monday, July 26, 2004 9:12
PM> To: amibroker@xxxxxxxxxxxxxxx>
Subject: RE: [amibroker] Training mode.> > >
> Thanks for your reply Herman, but we've had this
discussion before (:-).> This is from my 6/27 reply to similar
responses when I first posted about> this:> >
> > ---------------> > >
> Thanks for your reply Graham, but as I mentioned, I've
tried that, and it> has problems.> > >
> Try the more complete setup below, with a couple of
random indicators> added. Everything's fine with nothing blanked.
Blank out one bar, and the> price plot still looks fine, but MACD
and RSI spike to zero on the null> price bars, causing them to
rescale, the MACD illegibly. Blank a few more> bars, past a SAR
cross, and SAR does the same thing.> > >
> For another approach, comment out the BlankAll() line,
and re-enable> BlankAll2(), on the next line. This shifts
everything to the right, "off the> page", and then back. I tried
this because that seemed very analgous to> those bars really not
existing. Turns out that AB seems to treat them as> missing data
(makes sense), and uses the existing last value for the missing>
bars.> > > > Is there a way to work
around all this? Of course, blank the indicators> too. But that
means you have to recode every indicator on any pane you want> to
do this with.> > > > I'd much rather
just drop in a single function to adjust the price bars,> and have
everything just work. But setting things to null doesn't really do>
it. Any other ideas on a good blanking mechanism?> > >
> What I'd really like is a built in feature that handled
this> automatically, including blanking BuyPrice, ShortPrice etc, and
any new> built in variables as they get added.> >
> > Clearer?> > >
> Dave Merrill> > >
> ---------------> > global gBI,
gBarsBlanked;> > > > gBarsBlanked =
Param( "bars", 0, 100, 0, -1);> gBI = BarIndex();>
> > > function IsBlanked()
{> return gBI >= (BarCount -
gBarsBlanked);> }> function Blank(array)
{> x = IIf(IsBlanked(), Null,
array);> return x;>
}> function Blank2(array) {> x =
Ref(Ref(array, -gBarsBlanked), gBarsBlanked);> return
x;> }> function BlankAll()
{> O = Blank(O); H = Blank(H); L = Blank(L); C =
Blank(C);> Avg = Blank(Avg); V =
Blank(V);> }> function BlankAll2()
{> O = Blank2(O); H = Blank2(H); L = Blank2(L); C =
Blank2(C);> Avg = Blank2(Avg); V =
Blank2(V);> }> function OHLCTitle()
{> return> Interval(2)
+ " " + Date()> + " Open = " +
O> + ", High = " +
H> + ", Low = " +
L> + ", Close";> }>
> > > BlankAll();>
//BlankAll2();> > > > GraphXSpace =
5;> Plot(C, OHLCTitle(), colorDefault,
styleCandle);> Plot(V, "Volume", colorBlue,
styleHistogram+styleOwnScale, 0,> LastValue(Highest(V)) *
2);> //Plot(IIf(IsBlanked(), 1, 0), "",
colorLightGrey,> styleArea+styleOwnScale+styleNoLabel, 0, .5);>
> > > m = MACD(); r = RSI(); s =
SAR();> > > > Plot(m, "MACD",
colorBlue, styleOwnScale);> Plot(r, "RSI", colorRed,
styleOwnScale);> Plot(s, "SAR", colorYellow,
styleDots+styleNoLine);> /*>
Plot(Blank(m), "MACD", colorBlue, styleOwnScale);>
Plot(Blank(r), "RSI", colorRed, styleOwnScale);>
Plot(Blank(s), "SAR", colorYellow, styleDots+styleNoLine);>
*/> > > > --------------->
> This removes bars under param()
control.> herman>
> Z = Null;> LB
=LastValue(BarIndex());> O =
IIf(BarIndex()>(LB-RM),Z,O);> H =
IIf(BarIndex()>(LB-RM),Z,H);> L =
IIf(BarIndex()>(LB-RM),Z,L);> C =
IIf(BarIndex()>(LB-RM),Z,C);> // Just an
example system> >
StochRsi=EMA((RSI(8)-LLV(RSI(8),8))/(HHV(RSI(8),8)-LLV(RSI(8),8)),3)*100;>
Buy=Cross(17,StochRsi) AND Ref(MA(C,21),-1) <
MA(C,21);;>
Sell=Cross(StochRsi,83);>
Short=Cross(StochRsi,83) AND Ref(MA(C,21),-1) >
MA(C,21);>
Cover=Cross(17,StochRsi);>
Plot(C,"Close",2,1);>
PlotShapes(IIf(Buy,shapeUpArrow,IIf(Short,shapeDownArrow,shapeNone)),>
IIf(Buy,colorBrightGreen,IIf(Short,colorRed,colorBlack)));>
> -----Original
Message-----> From: Dave
Merrill> Sent: Monday, July 26, 2004 8:26
AM> To:
amibroker@xxxxxxxxxxxxxxx> Subject: RE:
[amibroker] Training mode.>
> I've asked for something similar
myself, maybe with a slider or> something to control the number of
bars blanked at the end, rather than only> stepping through one at
a time. Besides training your mind, it's also useful> for
evaluating the behavior of indicators that "guess" about the future,
or> for other reasons change shape as more data becomes
available.> > >
> The closest I know of that you
can do currently is to set all prices> after a certain bar to null.
Some types of indicators do odd things right at> the transition
point, so you may need to null them out too. For that reason,> you
may have to recode this arrangement specifically for every pane,
not> idea;.> > >
> It also won't remove hand-drawn
studies, much less put them back> later. You might be able to code
up something that sets the color of studies> to your background
color, maybe?> > >
> It's better than nothing, and
AFIK, the best we can do without it> being built into AB, but I too
hope Tomasz adds a feature like this.> > >
> Dave Merrill>
> I would like to set
AB's data to a selected date back in
time,> clear of all
existing studies I might have drawn like
trendlines> ect,
but trendlines and other studies are able to be
drawn.> Then every time
the space bar is pressed a new days(weeks or
tick)> worth of data is
added.> > The
reason for this of cause is to test or practice trading
like> backtesting your
idears and instinks in real time.>
> Is there currently a
way to do this?>
> Downloading each days
history is not a solution. To time consuming.>
> Any
idear?>
Thanks>
Ant.Check AmiBroker web page at:<A
href="">http://www.amibroker.com/Check
group FAQ at: <A
href="">http://groups.yahoo.com/group/amibroker/files/groupfaq.html
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