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Re: [amibroker] AmiBroker 4.33.0 BETA released



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Tomasz,  Once again the password will not work.  I 
was not able to access the last beta upgrade either.  
<BLOCKQUOTE 
>
  ----- Original Message ----- 
  <DIV 
  >From: 
  Tomasz Janeczko 
  
  To: <A title=amibroker@xxxxxxxxxxxxxxx 
  href="">amibroker@xxxxxxxxxxxxxxx 
  Sent: Sunday, April 27, 2003 8:47 
AM
  Subject: [amibroker] AmiBroker 4.33.0 
  BETA released
  
  
  Hello,
   
  A new beta version (4.33.0) 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/ab4330beta.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
   
  Contains new "Database purify tool" among other improvements.
   
  For more details please read the following "READ ME" 
  text.
   
  Best regards,Tomasz 
  Janeczkoamibroker.com
   
  
  AmiBroker 4.33.0 Beta Read Me
  April 27, 2003 17:45 
  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 4.33.0 beta" written in the 
  About box.
  CHANGES FOR VERSION 
  4.33.0 (as compared to 4.32.2)
  
    Database purify tool implemented (available via Tools->Database 
    Purify)allows to detect missing/extra quotes, possible splits, invalid 
    OHLC relationshipApply to/range settings similar to AA window. You 
    can also right click over result list to add symbols to watch list and copy 
    the list to the clipboard (and paste it later to any other program for 
    futher use)
    further improvements to AFL garbage collector, now looping regardless of 
    loop count requires the same amount of memory as just single pass of the 
    code (no growing allocated memory during loops).This enormously lowered 
    memory consumption for some formulas and increased the speed of some loops 
    3..4 times.
    added variable period support to the following 
    functions:LinRegSlope,LinearReg,LinRegIntercept,StdErr,TSF 

    Sample code:
    Plot( Close, "Test", colorBlack );
    range = 15 * MA( ATR( 15 ), 50 ) / ATR( 15 ); 
    //Plot( range, "range", colorBlue, styleOwnScale );Plot( LinearReg( 
    Close, range ), "Test", colorRed );
    
    fixed sometimes incorrect output of variable-period version of 
LLV/HHV
    
    fixed crash occuring when bad arguments were passed to the function (bug 
    introduced in 4.32.x).
  CHANGES FOR VERSION 
  4.32.2 (as compared to 4.32.1)
  
    second bug in experimental garbage collector fixed. 
  CHANGES FOR VERSION 
  4.32.1 (as compared to 4.32.0)
  
    garbage collector was releasing memory too soon in some cases, now 
    fixed. 
  CHANGES FOR VERSION 
  4.32.0 (as compared to 4.31.1)
  
    added type check in IF/ELSE statements 
    added type check in array element assignment 
    error messages now numbered and display changed slightly 
    you can break running loop by pressing Shift+BREAK (Pause) key 
    combination 
    calling COM objects works again (was broken in 4.31.x) 
    changed slightly the way TAB works in editor, if TAB is pressed any 
    selection is deselected to avoid accidential deletion of text 
    experimental: added 'agressive garbage collector' that extremely 
    decreases the amountof memory required to run AFL formula by releasing 
    the memoryused for temporary variables as soon as possible 
    (previouslytemporary memory was released at the end of formula 
    execution).A side-effect of new garbage collector is some speed up in 
    formula execution. 
    new tab in preferences for AFL engine settings 
    experimental feature, NOT for beginners, may be removed/modified in 
    future releases: new _TRACE( "string" ) AFL function addedthat 
    allows to write debug messages from AFL code to system debug viewer.(it 
    calls internally OutputDebugString Win API function).To view debug 
    messages you have to run DebugView freeware program from 
    http://www.sysinternals.com/ 
  CHANGES FOR VERSION 
  4.31.1 (as compared to 4.31.0)
  
    fixed bug introduced in 4.31.0 causing no text output in 
    commentary/interpretation 
  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 
   
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