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Re: [amibroker] AmiBroker 4.31.0 BETA released



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Simply amazing !!
 
When I noticed that you were not as active recently 
, I thought that you were busy with your new born !
 
Thanks Tomasz.
 
HB
<BLOCKQUOTE 
>
  ----- Original Message ----- 
  <DIV 
  >From: 
  Tomasz Janeczko 
  
  To: <A title=amibroker@xxxxxxxxxxxxxxx 
  href="">amibroker@xxxxxxxxxxxxxxx 
  Sent: Sunday, April 13, 2003 5:07
  Subject: [amibroker] AmiBroker 4.31.0 
  BETA released
  
  Hello,
   
  A new beta version (4.31.0) of AmiBroker has just been 
  released.
   
  It is available for registered users only from the members 
  area at:
  <A 
  href="">http://www.amibroker.com/members/bin/ab4310beta.exe
   
  If you forgot your user name / password to the members 
  area
  you can use automatic reminder service at: <A 
  href="">http://www.amibroker.com/login.html
   
  This release brings huge improvement to AFL: 
  for and while loops and 
  if-else flow control statements.
   
  Native AFL loops run 2..3 times faster than JScript 
  (according to my
  preliminary tests on arrays with 1000-5000 
bars)
   
  For more details and example code please read the following 
  "READ ME" text.
   
  NOTE: from now on all beta releases will be available to 
  registered
  users only (in member area).
   
  Best regards,Tomasz 
  Janeczkoamibroker.com
   
   
  
  AmiBroker 4.31.0 Beta Read Me
  April 13, 2003 10:38 
  THIS IS AN EARLY BETA VERSION OF THE SOFTWARE. EXPECT BUGS 
  !!!
  AGAIN: THIS IS AN EARLY BETA VERSION OF THE SOFTWARE. EXPECT BUGS 
  !!!
  Backup your data files and entire AmiBroker folder 
  first!
  INSTALLATION INSTRUCTIONS
  IMPORTANT: This archive is update-only. You have to install full 
  version 4.30 first. 
  Just run the installer and follow the instructions. 
  Then run AmiBroker. You should see "AmiBroker 4.31.0 beta" written in the 
  About box.
  CHANGES FOR VERSION 
  4.31.0 (as compared to 4.30.0)
  
    Workspace window uses "icon font" set in the Windows settings instead of 
    hard coded Tahoma 8 
    for better readability and ClearType(tm) compatibility on WinXP, all 
    dialog windows use now 'MS Shell Dlg' face name that maps to standard MS 
    Sans Serif on Win 9x/Me/NT and Tahoma on Win 2K and XP. 
    rewritten AFL parser, now formula is parsed and coverted to syntax tree 
    and then interpreted. This would allow further improvements including 
    compilation. This allowed also to add loops/if-else statements. 
    implemented IF/ELSE statement, WHILE and FOR loops:The same basic 
    'for' loop in AFL is 2..3 times faster than in JScriptSyntax follows 
    C++/JScript style: 
    while( conditional_expression ) statement;
    for( initializer_part; conditional_expression; iterator_part ) 
    statement;
    if( conditional_expression ) statement;
    if( conditional_expression ) 
    statement;elsestatement;
    
    implemented compound statements: these are blocks of statements 
    enclosedin opening and closing curly brace 
    {statement1;statement2;...statementN;}
    compound statement can appear anywhere when simple statement can.
    For example:
    i = 10;while( i < 20 ){Plot( MA( Close, i ), "MA" + 
    WriteVal( i, 0 ), colorBlack + i );i = i + 1;}
    
    implemented C-style postfix and prefix increment/decrement operators
    i = 10;WriteIf( i++ );WriteIf( ++i );WriteIf( i 
    );
    
    implemented array element access (subscript) operator []:
    WriteVal( Close[ 0 ] ); // prints the first bar of close 
    array
    /* a sample low-level implementation of exponential moving average 
    in AFL */
    myema[ 0 ] = Close[ 0 ];
    for( i = 1; i < BarCount; i++ ){myema[ i ] = 0.1 * 
    Close[ i ] + 0.9 * myema[ i - 1 ];}
    
    added built-in constant 'BarCount' that returns number of bars available 
    in arrays (the number of elements of array)When QuickAFL is turned on it 
    may be less than true number of bars because QuickAFL feature attempts to 
    use only visible bars (and few before). You can control how many bars the 
    formula requires using SetBarsRequired() function
    
    implemented infinite-loop protection. Nice if you forgot to increment 
    counter variable in 'for' loop :-)
    
    tab key now works without need to press ALT/CTRL in AFL editors
    
    added C-like synonyms for logical ADD/OR/NOT: &&, ||, ! 
    /* a sample low-level implementation of Profit-target stop in 
    AFL: */
    Buy = Cross( MACD(), Signal() );
    priceatbuy=0;
    for( i = 0; i < BarCount; i++ 
    ){     if( priceatbuy == 0 && Buy[ 
    i ] )      priceatbuy = BuyPrice[ i 
    ];
         if( priceatbuy > 0 && 
    SellPrice[ i ] > 1.1 * priceatbuy 
    )     {       Sell[ 
    i ] = 1;       SellPrice[ i ] = 1.1 * 
    priceatbuy;       priceatbuy = 
    0;     }     else       Sell[ 
    i ] = 0;}
    /* sample EMA rainbow */
    Plot( Close, "Price", colorBlack, styleCandle );for( Range = 
    15; Range < 100; Range++ )   Plot( EMA( Close, Range 
    ), "MA"+WriteVal(Range,0), colorRose + Range % 8, styleNoLabel );
    
  HOW TO REPORT BUGS
  If you experience any problem with this beta version please send detailed 
  description of the problem (especially the steps needed to reproduce it) to <A 
  href="">bugs@xxxxxxxxxxxxx Send 
  BUG REPORTS to bugs@xxxxxxxxxxxxxSend SUGGESTIONS to 
  suggest@xxxxxxxxxxxxx-----------------------------------------Post 
  AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx (Web page: <A 
  href="">http://groups.yahoo.com/group/amiquote/messages/)--------------------------------------------Check 
  group FAQ at: <A 
  href="">http://groups.yahoo.com/group/amibroker/files/groupfaq.html 
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