Re: [amibroker] Slow FX Indice code: can this be improved?

[Tomasz Janeczko]

Instead of SetForeign use Foreign since you really need only CLOSE price (not 
OHLC). 
Better yet - use AddToComposite to calculate composite once only.

Best regards,
Tomasz Janeczko
amibroker.com
  ----- Original Message ----- 
  From: kris45mar 
  To: amibroker@yahoogroups.com 
  Sent: Thursday, April 19, 2007 2:56 PM
  Subject: [amibroker] Slow FX Indice code: can this be improved?


  Hi Group

  I run the MT3 plugin to get FX data in local database with local data storage 
enabled.

  This code runs slowly on all time frames, slowing down AB.

  Not being a programmer I wondered if there was a better way to code this to 
speed it up a bit.

  Code is a proxy to see which currencies are currently strong or weak:

  ********
  ********

  //FX indexes

  // ozzie

  SetForeign("AUDJPY"); AJ = C;
  SetForeign("AUDUSD"); AU = C;
  SetForeign("AUDCAD"); AC = C;

  // EZ
  SetForeign("EURUSD"); EU = C;
  SetForeign("EURJPY"); EJ = C;
  SetForeign("EURCAD"); ECA = C;
  SetForeign("EURCHF"); ECH = C;
  SetForeign("EURGBP"); EG = C;

  // GBP
  SetForeign("GBPUSD"); GU =C;
  SetForeign("GBPJPY"); GJ = C;
  SetForeign("GBPCHF"); GC =C;
  SetForeign("EURGBP"); EG = C;

  // YEN

  SetForeign("USDJPY"); UJ = C;
  SetForeign("EURJPY"); EJ =C;
  SetForeign("CHFJPY"); CJ =C;
  SetForeign("GBPJPY"); GJ = C;
  SetForeign("AUDJPY"); AJ =C;

  RestorePriceArrays();

  Pound_Index = GU * GJ * GC * (1/EG);
  OZZIE = AJ * AU * AC;
  EZ_Index = EU* EJ * ECA * ECH * EG;
  Yen_Index = -( UJ + EJ + CJ + AJ + GJ);

  Plot(OZZIE, "Oz_Index", colorGreen, 1);
  Plot( EZ_Index, "EZ_Index", colorBlue,1 | styleOwnScale);
  Plot( Pound_Index,"GBP Index",colorBlack, 1 | styleOwnScale);
  Plot( Yen_Index, "JPY Index", colorRed, 1 | styleOwnScale);


  *********
  *********


  While this computes, AB is pretty much non responsive.

  Any ideas?

  ChrisB



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