I can’t
install the upgrade on one of my boxes—get a “FreeExtractorError’.
What is it
and how do I fix the problem [re-booted without joy]?
TIA,
Bob
-----Original
Message-----
From: amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf
Of Tomasz Janeczko
Sent: Saturday, October 22, 2005
9:53 AM
To: amibroker@xxxxxxxxxxxxxxx;
amibroker-beta@xxxxxxxxxxxxxxx; amibroker-news@xxxxxxxxxxxxxxx
Subject: [amibroker] AmiBroker
4.74.1 BETA released
Hello,
A new
beta version (4.74.1) of AmiBroker has just been released.
It is
available for registered users only from the members area at:
http://www.amibroker.com/members/bin/ab4741beta.exe
(File size: 1 123 465 bytes, 1 MB)
If you forgot your user name / password to the members area
you can use automatic reminder service at: http://www.amibroker.com/login.html
The instructions are available below and in the "ReadMe" file
( Help->Read Me menu from AmiBroker )
Highlight of this release is new customizable user-interface, featuring
·
Tear-Off Tabs
·
Nested docking pane
grouping
·
WYSIWYG docking
·
sliding auto-hide
pinnable windows
·
modern
"Whidbey" look
·
Tear-Off menus and
toolbars
·
Add/copy/Delete/Modify/drag-drop
commands
·
User-defined toolbars
For a little video presentation see:
http://www.amibroker.com/video/uicustomize.html
Note: toolbar and keyboard customizations made in old versions need to be
re-done because they can not be imported by new system due to fundamental
differences (I am sorry about that)
The
only change to 4.74.0 is minor fix for progress bar display during exploration.
Best regards,
Tomasz Janeczko
amibroker.com
AmiBroker 4.74.1 Beta Read Me
October
22, 2005 18:46
THIS IS A BETA VERSION OF THE SOFTWARE. EXPECT BUGS !!!
Backup your data files and entire AmiBroker folder first!
IMPORTANT NOTE: This version uses new system to store indicators (in separate
files), so old versions will not automatically "see" indicators
created with new version.
INSTALLATION INSTRUCTIONS
IMPORTANT: This archive is update-only. You have to install full version
4.70 first.
Just run the installer and follow the
instructions.
Then run AmiBroker. You should see
"AmiBroker 4.74.1 beta" written in the About box.
Many thanks to all providing detailed
descriptions how to reproduce given bug.
See CHANGE LOG below for
detailed list of changes.
CHANGE LOG
CHANGES FOR
VERSION 4.74.1 (as compared to 4.74.0)
·
Fixed incorrect message displayed in the progress window during some
longer explorations
CHANGES FOR
VERSION 4.74.0 (as compared to 4.73.0)
·
New user interface: fully user-customizable advanced docking
panes/toolbars/menus.
New UI features:
o Tear-Off Tabs
o Nested docking pane grouping
o WYSIWYG docking
o sliding auto-hide pinnable windows
o modern "Whidbey" look
o Tear-Off menus and toolbars
o Add/copy/Delete/Modify/drag-drop commands
o User-defined toolbars
For a little video presentation see:
http://www.amibroker.com/video/uicustomize.htmlNote: toolbar and keyboard
customizations made in old versions need to be re-done because they can not be
imported by new system due to fundamental differences (I am sorry about that)]
·
GroupID(), IndustryID(), SectorID, MarketID(), InWatchList(), IsIndex()
and IsContinuous() functions are now affected by SetForeign
·
Removed debug messages cluttering DebugView output (that appeared in
4.73)
·
Changed the way drawing color picker is working: now it works like in
Word (or other text editor) - keeps selected color even if drawing with
different color is clicke
·
Fixed false message "The note has been modified outside the notepad
editor." occuring when file did not exist
·
OLE: Changed Window.LoadTemplate to return FALSE when file can not be
found
·
OLE: Window.LoadTemplate now refreshes display so it is not necessary to
use SelectedTab = 0
·
Removed constant RT refreshes in interpretation window when text does
not change
·
ZoomToRange: last selected bar in range is visible after zooming now
CHANGES FOR
VERSION 4.73.0 (as compared to 4.72.1)
·
OLE: Window object, new method ZoomToRange( From, To )
ZoomToRange( From, To )
>From and To parameters are of any type that can be converted to date(you can
use string or OLE date for example).
Example code (JScript):
AB=new ActiveXObject("Broker.Application");
AW = AB.ActiveWindow;
if( AW.ZoomToRange( "2005-04-01", "2005-08-01" ) )
{
WScript.Echo("Zoom successfull" );
}
·
Fixed: Chart got shrinked a bit with each overlaid plot, now the Y scale
does not change (unless really needed)
·
Fixed: XShift now works correctly with styleOwnScale and styleLeftScale
·
Fixed: Volume chart overlaid on price chart in log scale (overlay) was
compressed to flat line, now it is fixed (volume chart overlay uses linear
scale always)
[#22262]
·
AFL: Added AlmostEqual function (completed: 2005-09-16)
AlmostEqual( x, y, ulps = 5 )
this is a helper function for comparing floating point numbers.It returns True
if x and y are equal or almost equal upto defined accurracy (ulps).It is
recommended to use this function instead of equality check (==) as itleads to
more reliable comparisons and less headache caused by IEEE floating
pointacurracy issues.
Parameters:x, y - the numbers or arrays to be compared,Ulps stands for
"units in last place" and represents maximum relative error of the
comparison. Since 32 bit IEEE floating point numbers have accurracy of 7
significant digits, 1 unit in last place(ulp) represents relative error of
0.00001 %. The default value of ulps parameter is 5 which gives roughtly
0.00005% "comparison sensitivity".
Example code:
if( 1/3 == 0.3333333 )
{
printf("32-bit Floating point IEEE exact equality\n");
}
if( AlmostEqual( 1/3, 0.3333333 ) )
{
printf("Numbers are almost equal\n");
}
Thanks to Bruce Dawson for his fast routine.
·
Optimize() function now checks if min < max, step > 0 and checks
if parameter name is not empty
·
Made Time&Sales case insensitive (when "case sensitive
tickers" option is turned off")
·
OBV/AccDist/Chaikin functions adjusted to be SetForeign-aware
·
OLE: Application object new methods
BOOL LoadLayout( filename )
BOOL SaveLayout( filename )
AB = new ActiveXObject("Broker.Application");
AB.LoadLayout("C:\\Program
Files\\AmiBroker\\Data\\Layouts\\Default.awl");
·
OLE: Window object new property: SelectedTab
AB = new ActiveXObject("Broker.Application");
AW = AB.ActiveWindow;
tabindex = AW.SelectedTab; // read selected tab
AW.SelectedTab = 3; //switch to tab 3
AW.SelectedTab = tabindex; // restore originally selected tab
·
Fixed: Exception was generated when GetRTDataForeign was called with
non-existing ticker
·
OLE: Window object new methods: LoadTemplate, SaveTemplate
AB = new ActiveXObject("Broker.Application");
AW = AB.ActiveWindow;
AW.SaveTemplate("Test.abt");
AW.LoadTemplate("Test.abt");
CHANGES FOR
VERSION 4.72.1 (as compared to 4.72.0)
·
fixed out-of-memory problem sometimes occuring during scan of large
(>512MB) databases
CHANGES FOR VERSION
4.72.0 (as compared to 4.71.1)
·
" Currency" field support in ASCII importer
added command:
$CURRENCY USD
and field:
$FORMAT Name,Currency$OVERWRITE 1$AUTOADD 1]
·
Added "Additional commands" field in the Import wizard for
typing any extra $- commands that are not available via checkboxes
·
Added parameter to AddColumn/AddTextColumn to control column width
AddColumn( ARRAY, "Caption", format = 1.2, color = colorDefault,
bgcolor = colorDefault, width = -1);
AddTextColumn( "Text", "Caption", format = 1.2, color =
colorDefault, bgcolor = colorDefault, width = -1 );
·
AddToComposte new flag to work when Status("action")==
actionPortfolio (completed: 2005-09-09)
new flag is called atcEnableInPortfolio
Example:
if( Status("action" ) == actionPortfolio )
{
... Custom backtest mode here ....
AddToComposite( some_array, "~COMPOSITE", "X",
atcFlagEnableInPortfolio | atcFlagDefaults );
}
·
AFL added: tanh(), sinh(), cosh() functions
Hyperbolic tangent, sine and cosine function
·
AFL functions: StrToUpper and StrToLower
·
Fixed: Tick ASCII import: last tick of previous import was deleted on
subsequent import, now it is corrected
·
Function to detect mouse button state
GetCursorMouseButtons() returns mouse button state at the time when chart
formula is executed
0 - if no mouse button is pressed
1 - if left mouse button is pressed
2 - if right mouse button is pressed
4 - if middle mouse button is pressed
plus combinations:3 - left + right5 - left + middle6 - right + middle 7 - left
+ right + middle]
·
GetRTDataForeign (retrieving values for other symbols)
GetRTDataForeign( "field", "symbol")
·
Pane is not deleted if shrinked down to zero (prevents from accidential
deletion of panes)
·
Plot function now has xshift parameter that allows to visually shift the
chart past the last bar
Example 20-bar Moving average shifted 10 bars into the future past the last
bar:
Plot(Close,"Close",colorBlack,styleCandle);Plot(MA(Close,20),
"Shifted MA", colorRed, styleLine, Null, Null, 10 );
Note that shift occurs during plotting and does not affect source array
·
Removed data source selection from preferences because it caused user
confusion way too often
·
Stock.Currency available via OLE
·
Title variable now supports new special token {{OHLCX}} which is
replaced at runtime by string "Open ..., Hi .... Lo ... Close (...%)"
showing current price
This way it is possible to implement formula that will show OHLC prices with
number of decimal places set in the preferences.
Example:
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = "{{NAME}} - {{INTERVAL}} {{DATE}} {{OHLCX}} {{VALUES}}" );
Plot( C, "Close", ParamColor("Color", colorBlack ),
styleNoTitle | ParamStyle("Style") | GetPriceStyle() );
·
user-definable number of decimal places in chart titles (completed:
2005-09-09)
Number of decimal places displayed in default chart title is now user-definable
inTools->Preferences->Miscellaneous"Decimal places in chart
titles".
Allowable values:
-1 - dynamic mode (number of decimal places automatically adjusted)
0..6 - fixed number of decimal places
·
QuoteArray resizing now uses heuristic algorithm to minimize memory
fragmentation and increase performance
·
atcFlagDeleteValues now highlighted properly in the AFL editor
CHANGES FOR
VERSION 4.71.1 (as compared to 4.71.0)
·
fixed compatibility problem with AmiQuote (due to changed order of OLE
properties/method while AmiQuote was using old ones)
·
now ASCII importer in $TICKMODE does not delete quotes older than oldest
(first) record in the imported file, so you can safely import tick data from
subsequent files (older first, newest later)
CHANGES FOR
VERSION 4.71.0 (as compared to 4.70.5)
·
AFL: added GetCursorXPosition() and GetCursorYPosition() functions
Functions return current mouse cursor position.
Values returned are equal to those visible in the status bar, and these
functions require status bar to be visible. Returned values represent cursor
position at the formula execution time (or few milliseconds before it) and
accurracy is subject to pixel resolution of the screen (first cursor position
is read in screen pixels (integer) and then converted to actual value therefore
for example when screen resolution is 1024x768 maximum obtainable resolution in
X direction is 0.1% and in Y direction 0.13%), also X values are snap to
datetime of nearest data bar.
It only makes sense to use these functions in indicator/interpretation code.
Using them in AA window may yield random values.GetCursorXPosition() function
returns X position in DateTime format (the same as used by DateTime()
function).You can convert it to string using DateTimeToStr()
function.GetCursorYPosition() returns Y position (as displayed in Y axis of the
chart).
Example:
ToolTip="X="+DateTimeToStr(GetCursorXPosition())
+"\nY="+GetCursorYPosition();
·
AFL: added DateTimeToStr() and StrToDateTime() functions
These functions allow to convert string to datetime format and vice versa.
Example:
ToolTip="X="+DateTimeToStr(GetCursorXPosition()) +"\nY="+GetCursorYPosition();]
·
Added ability to store charts as .GIF (in addition to PNG)
·
ASCII importer maximum supported line length is increased to 2048
characters
·
Fixed: .aflsafe files didn't get deleted automatically
·
Added N-volume bars charts and timeframe support.
Custom N-volume bar intervals are definable (as usual) in
Tools->Preferences->Intraday.
TimeFrame functions were also extended to support N-volume bars using new
TimeFrameMode() function calling
TimeFrameMode( 0 );
- switches time frame functions to time-based operation (the default)
TimeFrameMode( 1 );
- switches time frame functions to N-tick operation (positive values passed to
TimeFrameSet are treated now as N-tick)
TimeFrameMode( 2 );
- switches time frame functions to N-volume bar operation (positive values
passed to TimeFrameSet are treated nowas N-volme bars)
Example:
TimeFrameMode( 2 );
TimeFrameSet( 50000 ); // 50'000 share bars..
...do something ...
TimeFrameRestore();
Note: N-volume bars are somewhat weird (compression of data to N-volume bar may
actually deliver MORE output bars - for example if one tick is 1000 shares and
you have specified 100V bars then single tick will be expanded to TEN 100V bars
- ten times original size)
TimeFrame functions are protected against array overrun and will not decompress
beyond original array size (you will get an "Error 47. N-volume bar
compressed data longer than base time frame").
Also switching main time frame to some weird N-volume bar value will result in
limiting the output to maximum twice original data size(without error message).
You should keep that in mind and avoid using too small N-volume bar intervals
that could lead to such condition.
Also due to the nature of N-volume bars the only TimeFrameSet() function will
yield correct N-volume bar values, TimeFrameGetPrice() may give slightly
distorted results.
It is also possible to use n-volume bars in TimeFrame functions without calling
TimeFrameMode() - it is then necessary to specify n-volume bars as negative
number offset by -1000000 (minus one million):
TimeFrameSet( -1000000 - 2000 );
// gives 2000V barsSimilarly formatted negative numbers will be reported by
Interval() function when n-volume bars are selected.
·
OLE: Save As PNG / GIF callable from automation
Example script:
AB = new ActiveXObject("Broker.Application");
AB.ActiveWindow.ExportImage("Test.png");
·
Plugin is not called when GetExtraData is used for symbol that has
"use only local database" flag turned on, and NULL is returned
instead of an error
·
Protected against changing application's current working directory by
printing to file
·
Toolbar does not get wrapped when main frame window is resized
·
OLE: Analysis object has new method MoveWindow( x, y, width, height)
that allows to control position and size of automatic analysis window
AB = new ActiveXObject("Broker.Application");
AB.Analysis.MoveWindow( 10, 10, 200, 200 );
It has some restrictions on size: specified size can not besmaller than 10x10
pixels and can not be bigger than entire screen dimensions.
Also when "No minimum size for resizing dialogs" box in UNCHECKED in
Tools->Prefs->Misc it won't shink AA window below default size necessary
to fully display all controls.
·
ASCII importer: added ability to import tick data from text files
ASCII importer now allows tick data files to be imported.
Tick data files consist of several records
having the same timestamp.This makes it impossible to use normal import mode
which assumes different (unique) timestampsfor each data row (when same
timestamp is found then new data overwrites old).
To turn on TICK mode you need to add manually
$TICKMODE 1
line to ASCII importer definition file.
$TICKMODE is a special mode of importer that allows to import quotes that
haveduplicate time stamps.
It makes two assumptions:
a) input data should come in the ascending time order (i.e. OLDER records
first, LATEST records last)
b) input data should consist of entire tick history because importer will
DELETE any existing quotes (to avoid creating multiple copies of the same
ticks).
Once again: Turning on
$TICKMODE 1
will DELETE ANY QUOTES that already exist in the database and then will import
all ticks from input data file.
You have been warned.
For example data files like this:
MOL,0,20050606,162959,16400.0000,16400.0000,16400.0000,16400.0000,2MOL,0,20050606,162959,16400.0000,16400.0000,16400.0000,16400.0000,11MOL,0,20050606,162959,16400.0000,16400.0000,16400.0000,16400.0000,40
Can be imported using the following definition file:
$FORMAT Ticker, Skip, Date_YMD, Time, Open, High, Low, Close, Volume
$SKIPLINES 1
$SEPARATOR ,
$CONT 1
$GROUP 255
$AUTOADD 1
$DEBUG 1
$TICKMODE 1
Sometimes it happens that input files have invalid timestamps (seconds >
59).
For example:
MOL,0,20050606,162970,16400.0000,16400.0000,16400.0000,16400.0000,2
Please take a closer look at first line shown in this example it has
time:16:29:70 (you see 70 seconds !)
So I had to add a special flag to the
importer that works around such data errors.
It is called $ALLOW99SECONDS 1 and will convert all records with invalid
seconds (i.e greater than 59)to 59s.
So record stamped 16:29:70 will be treated as 16:29:59
Now for tick mode to work with such
incorrect records you would need to add two lines to ASCII importer definition:
$TICKMODE 1
$ALLOW99SECONDS 1
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 bugs at amibroker.com
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For other support material please check also:
http://www.amibroker.com/support.html
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