AmiBroker 5.82.1 BETA Read Me

August 23, 2014 14:03

THIS IS A 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 5.80 first.

Just run the installer and follow the instructions.

Then run AmiBroker. You should see "AmiBroker 5.82.1 BETA" written in the About box.

See CHANGE LOG below for detailed list of changes. Note that only changes that affect end-user directly are listed here. Internal code changes/refactoring is usually not mentioned.

CHANGE LOG

CHANGES FOR VERSION 5.82.1 (as compared to 5.82.0)

• AFL Engine: fixes for stability issues in 5.81.0/5.82.0
• Filter dialog: a matching count wasn't updated on opening the dialog. Fixed.
• Bug report window made a little bigger so at least crash address is seen when someone sends screenshot instead of text
  

CHANGES FOR VERSION 5.82.0 (as compared to 5.81.0)

• UI: Interpretation and Commentary windows now support color text (via EncodeColor), bold and italic styles (tags: <b></b> for bold, <i> </i> for italic). Example:
  
  printf("<b>Bold text</b>\n");
printf("<i>Italic text</i>\n");
printf("Now " + EncodeColor( colorRed ) + "red text\n");
printf("and finally " + EncodeColor( colorGreen ) + "green <b>AND bold <i>AND italic</i></b>\n");
printf(EncodeColor( colorBlack ) + "going back to black");
  
• UI: Notepad, Interpretation and Commentary windows use default GUI font instead of hard-coded Tahoma now
• AFL: functionality of PlotGrid() function extended
  
  PlotGrid( level, color = colorDefault, pattern = 1, width = 1, label = True )

  pattern - defines line pattern. Available grid patterns 1..10 as shown in the Tools->Preferences, "Axes & Grids"
  1-7 are single pixel patterns, 8 is regular windows dot pattern (PS_DOT) , 9 is regular Windows dash pattern (PS_DASH), 10 is solid line

  width - grid line width (in pixels). Note that due to Windows GDI limitations only patterns 8 (PS_DOT), 9 (PS_DASH), 10 (PS_SOLID) are available in widths > 1

  label - whenever to display value label or not

  
  Use PlotGrid to display horizontal lines that are constant instead of using Plot.
  PlotGrid offers much better performance in this case.

  So instead of

  Plot( 50, "", colorRed, styleLine | styleThick );

  use:

  PlotGrid( 50, colorRed, 10, 2, False ); // solid line 2 pixels thick, no label

• AFL Editor: added 4 new snippets under "Function" category
• UI: Filter dialog now displays number of matching symbols in real-time as selections are made
• AFL: CCI function speeded up by 50%
• Inserting indicator with Param() calls into chart when currently selected symbol had no quotes caused exception. Fixed.
• AFL: In 5.81.0 CategoryGetName returned nothing (void) instead of string type when specified category did not exist. Fixed (empty string is returned now)
• New Analysis: portfolio backtest processing was attempted even if there was no symbols that matched "apply to" filter. Fixed (unnecesary processing is skipped now).
• AFL engine: in v5.81 access violation could occur when AFL array size was 0. Fixed.
  

CHANGES FOR VERSION 5.81.0 (as compared to 5.80.3)

• AFL Engine: custom memory allocator does not use Microsoft runtime lib for reference tracking anymore. Result - complex formulas with lots of loops and OLE (especially low-level custom backtests) run upto 3 times faster in 32 bit and 4 times faster in 64-bit
• AFL Editor: Parameter info tip significantly enhanced - now it re-opens on typing each , (comma) and highlights current parameter to be entered.
• UI: Column setup dialog: added Mark All / Toggle All buttons
• AFL: GetFormulaPath() function added - returns full formula file path
• AFL Editor: Smart reference highlighting implemented (usage: mark a word and all references become highlighted).
• AFL Editor: Find/Replace shows a message box when reached the end of the file and offers restarting from the beginning if new "Wrap around" option is turned on.
• AFL Engine: code refactoring for reduced size and improved speed
• AFL: when value of unsupported type was appended to string a crash could occur. Fixed.
• AFL Engine: when IIf was called the memory upsized from scalar to array could get freed twice (wrong). Fixed
• AFL: MACD() and Signal() functions made faster (approx 1.5-2x times)
• Analysis: Interest is added at the beginning of next bar (instead of end of current bar), to account for overnight rate. This also fixes the problem of ignoring interest in v.> 5.69
• UI: fixed yet another place where entering customization changed working dir

If you experience any problem with this beta version please send detailed description of the problem (especially the steps needed to reproduce it) to support at amibroker.com