RE: [amibroker] What is padded data?

["Graham" <gkavanagh@xxxxxxxxxxxxx>]

Herman
Padded data is when the 
non-traded days for a stock are filled with a bar of zero volume and equalt to 
the last traded day closing value
it would read (O=H=L= C) = 
valuewhen(V>0,C)
 
It seems to be something 
used mostly in Australia as I am not sure if used anywhere else on the 
globe
Cheers,Graham<A 
href="">http://groups.msn.com/ASXShareTrading<A 
href="">http://groups.msn.com/FMSAustralia 


  
  <FONT 
  face=Tahoma size=2>-----Original Message-----From: Herman 
  vandenBergen [mailto:psytek@xxxxxxxx] Sent: Wednesday, 26 November 
  2003 5:08 PMTo: AmiBrokerSubject: [amibroker] What is 
  padded data?
  <SPAN 
  class=450240009-26112003>Hello,
  <SPAN 
  class=450240009-26112003> 
  <FONT 
  color=#0000ff>In the Portfolio Settings page we can select "Pad and Align data 
  to Reference symbol". The help says: "Auto Analysis/Settings, 
  portfolio backtester (both regular and rotational modes): added ability to pad 
  and align all symbols to reference symbol. Note: by default this setting 
  is OFF. Use responsibly. It may slow down backtest and introduce 
  some slight changes to indicator values when your data has holes and 
  holes are filled with previous bar data. The feature is intended to be 
  used ONLY when your system uses general market timing (generates global 
  signals based on data and/or indicators calculated using Foreign from 
  'reference' symbol). Note 2: if reference symbol does not exist, data won't be 
  padded."
  <SPAN 
  class=450240009-26112003> 
  Can 
  someboy explain this in lay-man's terms? I think it means that any stocks that 
  have less data than the Reference symbol will be padded to provide a data 
  array of reference length... but if this is the case "what" is the array 
  padded with? Or is the Reference array padded to the length of the largest 
  stock array?
  <SPAN 
  class=450240009-26112003> 
  When 
  do I use it?
  Why 
  is it needed?
  What 
  goes or can go wrong if I don't use it?
  <SPAN 
  class=450240009-26112003> 
  Many 
  thanks for any help you can give!
  <SPAN 
  class=450240009-26112003> 
  <SPAN 
  class=450240009-26112003>Herman.
  <SPAN 
  class=450240009-26112003> 
  <SPAN 
  class=450240009-26112003> 
  <SPAN 
  class=450240009-26112003> Send 
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