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RE: [amibroker] The request for "variable" period functions



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<FONT 
color=#000080>Fred,
Though I innately 
rebel at pyramiding, AB would afford me great 
pleasure by, <FONT 
color=#000080>as a 1st step,  accepting subsequent buy signals 
that deserving tickers.triggered.
 
<FONT 
color=#000080>Regards,
<FONT 
color=#000080>Bob 

  <FONT face=Tahoma 
  size=2>-----Original Message-----From: Al Venosa 
  [mailto:advenosa@xxxxxxxxxxxx]Sent: Thursday, April 17, 2003 5:06 
  PMTo: amibroker@xxxxxxxxxxxxxxxSubject: Re: [amibroker] 
  The request for "variable" period functions
  I wholeheartedly agree with Jerome. Portfolio backtesting and pyramiding, 
  in my opinion, are much more important that introducing more indicators, 
  dynamic or not. I sure hope this new task, if adopted, does not distract or 
  slow down Tomasz from developing what I think lots more people wish to have as 
  part of the AB engine. My opinion, FWIW.
   
  Al Venosa
   
  <BLOCKQUOTE 
  >
    ----- Original Message ----- 
    <DIV 
    >From: 
    Silvarius 
    
    To: <A title=amibroker@xxxxxxxxxxxxxxx 
    href="">amibroker@xxxxxxxxxxxxxxx 
    Sent: Thursday, April 17, 2003 4:12 
    PM
    Subject: RE: [amibroker] The request 
    for "variable" period functions
    
    I 
    second Dimitris in his Opinion. Portfolio backtesting enhancement is much 
    more critical IMHO.
    <FONT face=Arial color=#0000ff 
    size=2> 
    <FONT face=Arial color=#0000ff 
    size=2>Best regards, Jérôme ULRICH
    
      <FONT face=Tahoma 
      size=2>-----Message d'origine-----De : DIMITRIS TSOKAKIS 
      [mailto:TSOKAKIS@xxxxxxxxx]Envoyé : jeudi 17 avril 2003 
      21:41À : <A 
      href="">amibroker@xxxxxxxxxxxxxxxObjet : 
      [amibroker] The request for "variable" period 
      functionsEverybody asks for variable period 
      possibilities, as if AFL is poor in this logic.Let us take a 
      closer look :Variable Period smoothing functions:MA, DEMA, TEMA do 
      accept variable period.The remaining EMA can accept through 
      EMA(ARRAY,PER)==AMA(ARRAY,2/(PER+1))Is there any other type of 
      smoothing used in your formulas ???RSI works through RSIA, CCI works 
      through CCIAMACD through above described EMA.What is next?How 
      about StochK and StochD with variable per ?Perhaps you do not know 
      that you can do it NOW in pure AFL !!The HHV and LLV functions work 
      fine with variable 
      period.per=10+cum(1)%20;StochKa=MA(100*(C-LLV(L,per))/(HHV(H,per)-LLV(L,per)),3);StochDa=MA(MA(100*(C-LLV(L,per))/(HHV(H,per)-LLV(L,per)),3),3);Is 
      ther any other function you would like to see with variable period 
      ?Search first the definition and then see if it already exists in your 
      AFL potential.It is better to know the definition of a Stochastic, 
      before asking fast software upgrades-enhanchments.In my opinion, 
      the lack of definition will always confuse the user, with fixed or 
      variable period.Dimitris Tsokakis Send BUG 
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