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[amibroker] Re: days since higher price



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just add 

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>,200<FONT 
face="Courier New" size=1>,<FONT face="Courier New" color=#ff00ff 
size=1>1); at the top of the 
code
 
<FONT face=Arial 
size=2>stephane
<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 
  __________ 
  NOD32 1.823 (20040726) Information __________This message was checked 
  by NOD32 antivirus system.<A 
  href="">http://www.nod32.com


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