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Hello,
>Just curious, but is there a reason why would
> anyone go back to an old version?
For example:
- to check how much faster is new version but forgot to measure old version timings :-)
- in case of possible bug to try if it was present in old version
- to enjoy nostalgic moods :-)
- to really understand how cool new UI is compared to old ugly one :-)
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "sebastiandanconia" <sebastiandanconia@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, January 03, 2006 6:22 PM
Subject: [amibroker] WRONG SUBJECT Re: AmiBroker 4.75.2 BETA released
> Thank-you, sir.:) Just curious, but is there a reason why would
> anyone go back to an old version?
>
>
> S.
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
> wrote:
>>
>> Hello,
>>
>> Two things:
>>
>> 1. This text is leftover from some old beta (pre 4.7x) and does not
> apply (appologies for not removing it)
>>
>> 2. You have MISREAD this. This is the other way round.
>>
>> It says " OLD versions will not automatically see indicators
> created with new versions"
>>
>> So if you install NEW version, create some NEW indicators and then
>> MOVE BACK to OLD version then you will need to add them manually
> (from afl files).
>>
>> But NEW version AUTOMATICALLY reads all previous indicators.
>>
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "sebastiandanconia" <sebastiandanconia@xxxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Tuesday, January 03, 2006 6:06 PM
>> Subject: [amibroker] Re: AmiBroker 4.75.2 BETA released
>>
>>
>> > Hey, Tomasz.:)
>> >
>> > "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."
>> >
>> > I'm sorry, I don't understand what you mean by this. Is it the
> other
>> > way around, and the new version won't "see" the indicators
> created in
>> > the old version? Does this mean I should save the indicators
> some
>> > way (like in a text file isolated from AB), then re-create them
> in
>> > the new version?
>> >
>> > TIA.
>> >
>> >
>> > Luck,
>> >
>> > Sebastian
>> >
>> >
>> >
>> >
>> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko"
> <amibroker@xxxx>
>> > wrote:
>> >>
>> >> Hello,
>> >>
>> >> A new beta version (4.75.2) of AmiBroker has just been released.
>> >>
>> >> It is available for registered users only from the members area
> at:
>> >> http://www.amibroker.com/members/bin/ab4752beta.exe
>> >>
>> >> (File size: 1 087 592 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:
>> >> a.. 24-bit (Truecolor) support for indicators and exploration
>> > output (see picture below)
>> >> b.. new "cloud" chart style (see picture below)
>> >> c.. speed improvements
>> >> a.. (AFL arithmetical / logical array operators hand
> optimized
>> > on assembly level providing upto +400% speed up)
>> >> b.. startup time increased 10 times
>> >> d.. other fixes and improvements (check READ ME below for
> details)
>> >>
>> >>
>> >> IMPORTANT NOTES:
>> >>
>> >>
>> >>
>> >> 1.. If you are using Firewall you may need to check if it did
> not
>> > block Broker.EXE file after upgrade. (It happened to some users
> that
>> > firewall blocked AmiBroker after upgrade and they could not
> connect
>> > to RT data sources due to that)
>> >> 2.. If you installed 4.75.1 BETA before, after installation of
>> > this version you may see "Invalid key file. Please visit
>> > http://www.amibroker.com/lostkey.html"; in the Help->About
> window.
>> >> If this happens, please either replace your key file with
>> > original one (if you have a backup) or go to
>> > http://www.amibroker.com/lostkey.html
>> >> to have the key sent to you.
>> >> Best regards,
>> >> Tomasz Janeczko
>> >> amibroker.com
>> >>
>> >> AmiBroker 4.75.2 Beta Read Me
>> >> January 3, 2006 17:13
>> >>
>> >> 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 4.75.2 beta"
> written
>> > in the About box.
>> >>
>> >> UPGRADE ALERT
>> >>
>> >> Version 4.75.x beta requires license for v4.30 or higher. Users
> who
>> > registered before March 5th, 2003 (version 4.20 or older) need to
>> > purchase upgrade - in such case you will see "LICENSE EXPIRED"
>> > message in the About box.
>> >>
>> >>
>> >> See CHANGE LOG below for detailed list of changes.
>> >>
>> >>
>> >> CHANGE LOG
>> >>
>> >> CHANGES FOR VERSION 4.75.2 (as compared to 4.75.1)
>> >>
>> >> a.. when no data we available chart background is correct now
> (it
>> > was black instead of one choosen in prefs in 4.75.x)
>> >>
>> >>
>> >> b.. Added ability to disable fixed ruin stop
>> >> When you add
>> >>
>> >> SetOption("DisableRuinStop", True);
>> >>
>> >> to your formula the backtester will not use built in 99.96%
> loss
>> > stop (ruin) Note: it is recommended NOT to use it unless you
> really
>> > have to.
>> >>
>> >>
>> >> c.. added new option to SetOption:
>> >>
>> >> SetOption("EveryBarNullCheck", True)
>> >>
>> >> SetOption("EveryBarNullCheck", True)- allows to turn on
> checking
>> > for Nulls in arithmetic operations on every bar in the array(by
>> > default it is OFF - i.e. AmiBroker checks for nulls that appear
> in
>> > the beginning of the arrayand in the end of the array and once
> non-
>> > null value is detected it assumes no further holes (nulls) in the
>> > middle). Turning "EveryBarNullCheck" to True allows to extend
> these
>> > checks to each and every barwhich is the way 4.74.x and earlier
>> > versions worked.
>> >>
>> >> Note however that turning it on gives huge performance penalty
>> > (arithmetic operations are performed even 4x slower when this
> option
>> > is ON, so don't use it unless you really have to).
>> >>
>> >>
>> >> d.. Added small result summary after backtest in the status
> line
>> >>
>> >>
>> >> e.. Fixed problem with plotting xshifted charts occuring when
>> > formula referenced future bars
>> >>
>> >>
>> >> f.. logical (boolean) operators check for nulls on every bar
> and
>> > treat null as "false" to maintain backward compatibility with
>> > formulas written for previous versions
>> >>
>> >>
>> >> g.. Modified file dialog buffer size from 262144 (0x40000)
> bytes
>> > to 262143 (0x3FFFF) to workaround 16 bit (64KB) buffer limit of
>> > Windows 95/98/NT4 (yes surprisingly NT4 is limited to 64K buffer
> in
>> > file dialogs)
>> >>
>> >> 16-bit windows (95/98) and NT4 were treating 0x40000 as 0
> (zero)
>> > because only lower 16 bits were interpreted. Thanks to move to
>> > 0x3FFFF it is now interpreted as 0xFFFF on 16 bit windows.
>> >>
>> >>
>> >> h.. Potential crash fixed when formula using AddToComposite
>> > atcEnableInBacktest is verified in the AFL editor
>> >>
>> >>
>> >> i.. Added XShift parameter to PlotOHLC and PlotForeign
> functions
>> >>
>> >>
>> >> j.. fixed re-mapping of built-in and custom colors in grid
> color
>> > picker
>> >>
>> >>
>> >> CHANGES FOR VERSION 4.75.1 (as compared to 4.75.0)
>> >>
>> >> a.. ParamColor now accepts 24 bit colors without crashing
>> >>
>> >>
>> >> b.. Null values appearing at the end of data series (array)
> are
>> > handled appropriately (propagate through arithmetic operators)
>> >> This fixes problem that 4.75.0 had with "trendline" formulas
> that
>> > used Null values put into the array at the end of the data
> series.
>> >>
>> >>
>> >> c.. Most recently picked drawing tool color is preserved
> between
>> > runs
>> >>
>> >>
>> >> d.. EncodeColor was not handling all 24 bit color combinations
>> > correctly. Fixed now.
>> >>
>> >>
>> >> e.. Chart tree fix: Moving or renaming formula in charts tree
> now
>> > updates all paths in indicators that use this formula
>> >>
>> >>
>> >> CHANGES FOR VERSION 4.75.0 (as compared to 4.74.6)
>> >>
>> >> a.. New chart style (styleCloud) to be used to create "cloud"
>> > chart as in Ichimoku charts. Also useful for indicator charts
> like
>> > MACD.
>> >>
>> >> This style fills non-rectangular (free shaped) area between
> HIGH
>> > and LOW arrays provided
>> >> by PlotOHLC function. Open and Close arrays are not relevant
> for
>> > plotting however Close
>> >> is used as usual to display value label and title. So
> recommended
>> > use is to use "upper" bounding value
>> >> in Open and High arrays and "lower" bounding value in "Low"
>> > and "Close" arrays
>> >> Sample Ichimoku cloud:
>> >>
>> >> SL = ( HHV( H, 26 ) + LLV( L, 26) )/2;
>> >> TL = ( HHV( H, 9 ) + LLV( L, 9 ) )/2;
>> >> DL = Ref( C, 25 );
>> >> Span1 = Ref( ( SL + TL )/2, -25 );
>> >> Span2 = Ref( (HHV( H, 52) + LLV(L, 52))/2, -25);
>> >>
>> >>
>> >> Plot( C, "Price", colorBlack, styleCandle );
>> >> Plot( SL, "SL", colorRed, styleThick );
>> >> Plot( TL, "TL", colorGreen, styleThick );
>> >> PlotOHLC( 0, span1, span2, span2, "Cloud", colorLightOrange,
>> > styleCloud );
>> >>
>> >> Simple MACD cloud:
>> >>
>> >> m = MACD();
>> >> Plot( Signal(), "Signal", colorBlue, styleThick );
>> >> PlotOHLC( m,m,0,m, "MACD", IIf( m > 0, colorGreen, colorRed ),
>> > styleCloud );
>> >>
>> >> Another MACD cloud (difference):
>> >>
>> >> m = MACD();
>> >> s = Signal();
>> >> Plot( s, "Signal", colorBlue);
>> >> Plot( m, "MACD", colorRed );
>> >> PlotOHLC( m,m,s,m, "MACD", IIf( m > s, colorLime,
>> > colorLightOrange), styleCloud );
>> >>
>> >>
>> >> b.. when File->Open database or MRU list is choosen then old
>> > database is saved first
>> >>
>> >>
>> >> c.. When default database is deleted, AB now asks for new
> default
>> > database folder, instead of re-creating it
>> >>
>> >>
>> >> d.. when database is deleted from the outside and user picks
> it
>> > via MRU list -then gets removed from MRU list and is not
> recreated
>> > anymore
>> >>
>> >>
>> >> e.. When AmiBroker is launched with incorrect "Start in"
> (working
>> > directory) then it automatically switches to "last good" path
>> >>
>> >> " Last good" path is saved in the registry
>> > HKEY_CURRENT_USER\TJP\Broker\Defaults\LastGoodPath, during
> successful
>> > launch in correct directory (whenever working directory is
> correct or
>> > not it is determined by checking for presence of Broker.chm file
>> > (help file))
>> >>
>> >> Using correct working directory is important because AmiBroker
>> > uses relative paths to most components.
>> >>
>> >>
>> >> f.. AFL: new function: StaticVarRemove()
>> >>
>> >> StaticVarRemove("varname")
>> >> removes static variable and releases associated memory
>> >>
>> >>
>> >> g.. Start-up time decreased significantly by implementation of
> on-
>> > demand loading of formulas
>> >>
>> >> (on slow, low-end machines loading time decreases from 10
> seconds
>> > to just 0.5 second)
>> >>
>> >>
>> >> h.. printf/StrFormat/SelectedValue functions no longer affect
>> > number of extra future bars calculated by QuickAFL
>> >>
>> >>
>> >> i.. Minor plugin status change (as in IB backfill) does not
> cause
>> > sound (only tooltip is displayed)
>> >>
>> >>
>> >> j.. Increased the limit of files that can be selected using
>> > Windows file dialog
>> >> Now import wizard and ascii importer file dialogs use 256KB
>> > buffer for file names that on average should allow 20000 files to
> be
>> > selected at once.
>> >>
>> >>
>> >> k.. Further speed improvements by rewriting chart ID lookup
>> > routine (GetChartInfoByID)
>> >>
>> >>
>> >> l.. Chart title string is clipped so Y axis is never obscured
>> >>
>> >>
>> >> m.. Chart title can be automatically wrapped now
>> >> Use 'Parameters' window,
>> >> " Axes & Grid" tab,
>> >> Miscellaneous->Wrap title: YES
>> >>
>> >> If you want to set it programmatically from the formula use
>> >> SetChartOptions( 2, chartWrapTitle );
>> >>
>> >>
>> >> n.. Auto-hide panes slide slightly faster
>> >>
>> >>
>> >> o.. All basic array arithmetic and logical operators inlined
> and
>> > hand optimized on assembly level for speed, gives upto 450% speed
>> > increase in basic array calculations
>> >>
>> >> Example speed increases:
>> >>
>> >> a) purely "theoretical" example
>> >> million iterations of array addition
>> >> for( i = 0; i < 1000; i++ )
>> >> for( k = 0; k < 1000; k++ )
>> >> Sumh = H + L;
>> >>
>> >> runs 4.8 times (+480%) faster (5 seconds in 4.75 compared to
> 24
>> > seconds in 4.74 and older, Athlon64@xxxx)
>> >> 2000 data bars.
>> >>
>> >> This gives ( 2000 * 1000000 additions ) / 5 sec = 400
> MEGAFLOPS
>> > (millions of floating point operations per second) AFL array-
> based
>> > AFL execution speed.
>> >>
>> >> b) "real-world" examples:
>> >> " Projection Oscillator"
>> >> http://www.amibroker.com/library/detail.php?id=344
>> >> single security optimization runs 85% faster
>> >> (13 seconds (4.75) compared to 24 seconds (4.74 or older) )
>> >>
>> >> " RSIS"
>> >> http://www.amibroker.com/library/detail.php?id=153
>> >> single-security optimization 5000 iterations runs 21% faster
>> >> (28 seconds (4.75) compared to 34 seconds (4.74 or older))
>> >>
>> >> NOTE: Performance increase depends on complexity of the
> formula.
>> > Biggest gains can be observed for formula doing LOTS of
> mathematical
>> > calculations on arrays (using lots of +, -, *, /, ^, %,
> comparisions
>> > <, >, ==, !=, <=, >=, etc).
>> >>
>> >>
>> >> p.. AFL: new function: SetChartBkColor( color )
>> >> sets chart background to user-specified color
>> >>
>> >>
>> >> q.. Added View->Time & Sales menu back
>> >>
>> >>
>> >> r.. Added chart timing display (you can turn it on via Tools-
>> >>Preferences->Display chart timing)
>> >>
>> >> when turned on, in the bottom of each chart the following
>> > information is displayed:
>> >> Total time X sec, AFL exec time Y sec (Z %), # extra bars back
> Q,
>> > fwd R
>> >>
>> >> where
>> >> X - is total time in second spent during chart refresh ( this
>> > includes AFL execution and actual screen painting/drawing, grid /
>> > scale calculations, etc)
>> >> Y - is time spent in chart AFL execution only (without any
> actual
>> > screen painting, grid / scale calcs)
>> >> Z - is percentage of time that AFL execution takes compared to
>> > total time required for refresh
>> >> Q - is a number of previous bars (before first visible bar)
> that
>> > are needed to calculate the indicator (QuickAFL estimation)
>> >> R - is the number of future bars (after last visible bar) that
>> > are needed to calculate the indicator (QuickAFL estimation)
>> >>
>> >>
>> >> s.. Added asin/acos to the AFL function reference
>> >>
>> >>
>> >> t.. AFL: 24-bit (16 million) truecolor support for indicators
> and
>> > exploration output.
>> >>
>> >>
>> >> u.. new ColorRGB() and ColorHSB functions to access full 24
> bit
>> > palette
>> >>
>> >> ColorRGB( red, green, blue )
>> >>
>> >> returns color value to be used in
>> > Plot/PlotOHLC/AddColumn/AddTextColumn
>> >> red, green, blue - represent color component values in range
>> > 0..255 each
>> >>
>> >> For more information about RGB color model please read:
>> >> http://en.wikipedia.org/wiki/RGB_color_model
>> >>
>> >> ColorHSB( hue, saturation, brightness )
>> >>
>> >> returns color value to be used in
>> > Plot/PlotOHLC/AddColumn/AddTextColumn
>> >>
>> >> hue - represents gradation of color within the optical
> spectrum
>> > (as in rainbow)
>> >> saturation represents "vibrancy" of the color
>> >> brightness represents brightness.
>> >>
>> >> Each parameter ranges from 0 to 255, where 0 represents 0%
>> > saturation/brightness
>> >> or 0 degree hue in HSV color wheel,
>> >> and 255 represents 100% saturation/brightness or 360degrees
> hue
>> > in HSV color wheel
>> >>
>> >> When you modify hue from 0 to 255 you will see consecutive
>> >> rainbow colors starting from red, through yellow and green to
>> > blue and violet.
>> >>
>> >> For more information about HSB color space please read:
>> >> http://en.wikipedia.org/wiki/HSB_color_space
>> >>
>> >>
>> >> Example MA rainbow chart (bring up parameters dialog and play
>> > with it):
>> >>
>> >> side = 1;
>> >> increment = Param("Increment",2, 1, 10, 1 );
>> >> for( i = 10; i < 80; i = i + increment )
>> >> {
>> >> up = MA( C, i );
>> >> down = MA( C, i + increment );
>> >>
>> >> if( ParamToggle("3D effect?", "No|Yes" ) )
>> >> side = IIf(up<=down AND Ref( up<=down, 1 ), 1, 0.6 );
>> >>
>> >> PlotOHLC( up,up,down,down, "MA"+i, ColorHSB( 3*(i - 10),
>> >> Param("Saturation", 128, 0, 255 ),
>> >> side * Param("Brightness", 255, 0, 255 ) ), styleCloud |
>> > styleNoLabel );
>> >> }
>> >>
>> >> ///////
>> >> Color-parade exploration
>> >>
>> >> Filter=1;
>> >> for( i = 0; i < 256; i = i + 16 )
>> >> AddColumn( C, "C", 1.2, colorDefault, ColorHSB( ( BarIndex()
> +
>> > i ) % 256, 255-i, 255 ) );
>> >>
>> >>
>> >>
>> >>
>> >> CHANGES FOR VERSION 4.74.6 (as compared to 4.74.5)
>> >>
>> >> a.. Fixed problem with RTQuote failing to load symbol list
> during
>> > first show
>> >>
>> >>
>> >> b.. Fixed problem in AA-Apply To-Date that was introduced
> because
>> > of tab order change
>> >>
>> >> CHANGES FOR VERSION 4.74.5 (as compared to 4.74.4)
>> >>
>> >> a.. Toolbar theme was reset when entering Formula Editor, now
> it
>> > is fixed
>> >>
>> >>
>> >> b.. Quote Editor list now remembers columns size and order
>> > between runs
>> >>
>> >>
>> >> c.. Keyboard shortcut editor now allows using punctation
>> > characters like Ctrl+[, Ctrl+], - =, etc
>> >>
>> >>
>> >> d.. Automatic Analysis: Pick button now has shortcut on Alt+I
> to
>> > avoid conflict with Alt+P (Parameters), also fixed tab order
>> >>
>> >>
>> >> e.. Fixed ParamDate to return DateNum instead of YYYYMMDD (4
>> > digit year)
>> >>
>> >> CHANGES FOR VERSION 4.74.4 (as compared to 4.74.3)
>> >>
>> >> a.. New "Appearance" tab in Tools->Customize, allowing to
> select
>> > menu/toolbar/docking pane themes and tab location
>> >>
>> >>
>> >> b.. Layout and Symbol trees are marked for refresh when
> database
>> > is changed and refreshed when user brings them up
>> >>
>> >>
>> >> c.. Fixed exception that occurred after customization when
> ticker
>> > bar was removed from all toolbars
>> >>
>> >>
>> >> d.. Fixed ticker bar losing focus when
>> > Shift/Insert/CapsLock/NumLock pressed
>> >>
>> >>
>> >> e.. Real-time Quote column order/size is remembered correctly
>> > again
>> >>
>> >> CHANGES FOR VERSION 4.74.3 (as compared to 4.74.2)
>> >>
>> >> a.. Fixed losing focus by ticker combobox when Shift,
> CapsLock,
>> > NumLock, Insert keys were pressed
>> >> CHANGES FOR VERSION 4.74.2 (as compared to 4.74.1)
>> >>
>> >> a.. Ticker combo is now correctly refreshed on database change
>> > even if moved to other toolbar than default
>> >>
>> >>
>> >> b.. Previously when Reset was used on Ticker toolbar it became
>> > blank - now it is fixed, ticker combo is refilled after closing
>> > customization mode
>> >>
>> >>
>> >> c.. Edit field in Ticker combobox does not scroll horizontally
>> > now when edited text is too long
>> >>
>> >>
>> >> d.. Numeric keypad keys now work with File MRU menu (most
>> > recently used files)
>> >>
>> >>
>> >> e.. Global shortcuts continue to work when focus is inside
> ticker
>> > combo
>> >>
>> >>
>> >> f.. "Profile" button in View toolbar works correctly now
>> >>
>> >>
>> >> CHANGES FOR VERSION 4.74.1 (as compared to 4.74.0)
>> >>
>> >> a.. Fixed incorrect message displayed in the progress window
>> > during some longer explorations
>> >> CHANGES FOR VERSION 4.74.0 (as compared to 4.73.0)
>> >>
>> >> a.. New user interface: fully user-customizable advanced
> docking
>> > panes/toolbars/menus.
>> >>
>> >> New UI features:
>> >> a.. Tear-Off Tabs
>> >> b.. Nested docking pane grouping
>> >> c.. WYSIWYG docking
>> >> d.. sliding auto-hide pinnable windows
>> >> e.. modern "Whidbey" look
>> >> f.. Tear-Off menus and toolbars
>> >> g.. Add/copy/Delete/Modify/drag-drop commands
>> >> h.. 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)]
>> >>
>> >>
>> >> b.. GroupID(), IndustryID(), SectorID, MarketID(), InWatchList
> (),
>> > IsIndex() and IsContinuous() functions are now affected by
> SetForeign
>> >>
>> >>
>> >> c.. Removed debug messages cluttering DebugView output (that
>> > appeared in 4.73)
>> >>
>> >>
>> >> d.. 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
>> >>
>> >>
>> >> e.. Fixed false message "The note has been modified outside
> the
>> > notepad editor." occuring when file did not exist
>> >>
>> >>
>> >> f.. OLE: Changed Window.LoadTemplate to return FALSE when file
>> > can not be found
>> >>
>> >>
>> >> g.. OLE: Window.LoadTemplate now refreshes display so it is
> not
>> > necessary to use SelectedTab = 0
>> >>
>> >>
>> >> h.. Removed constant RT refreshes in interpretation window
> when
>> > text does not change
>> >>
>> >>
>> >> i.. ZoomToRange: last selected bar in range is visible after
>> > zooming now
>> >> CHANGES FOR VERSION 4.73.0 (as compared to 4.72.1)
>> >>
>> >> a.. 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" );
>> >> }
>> >>
>> >>
>> >> b.. Fixed: Chart got shrinked a bit with each overlaid plot,
> now
>> > the Y scale does not change (unless really needed)
>> >>
>> >>
>> >> c.. Fixed: XShift now works correctly with styleOwnScale and
>> > styleLeftScale
>> >>
>> >>
>> >> d.. 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]
>> >>
>> >>
>> >> e.. 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.
>> >>
>> >>
>> >> f.. Optimize() function now checks if min < max, step > 0 and
>> > checks if parameter name is not empty
>> >>
>> >>
>> >> g.. Made Time&Sales case insensitive (when "case sensitive
>> > tickers" option is turned off")
>> >>
>> >>
>> >> h.. OBV/AccDist/Chaikin functions adjusted to be SetForeign-
> aware
>> >>
>> >>
>> >> i.. 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");
>> >>
>> >>
>> >> j.. 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
>> >>
>> >>
>> >> k.. Fixed: Exception was generated when GetRTDataForeign was
>> > called with non-existing ticker
>> >>
>> >>
>> >> l.. 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)
>> >>
>> >> a.. 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)
>> >>
>> >>
>> >> a.. " Currency" field support in ASCII importer
>> >> added command:
>> >> $CURRENCY USD
>> >>
>> >> and field:
>> >>
>> >> $FORMAT Name,Currency$OVERWRITE 1$AUTOADD 1]
>> >>
>> >>
>> >> b.. Added "Additional commands" field in the Import wizard for
>> > typing any extra $- commands that are not available via
> checkboxes
>> >>
>> >>
>> >> c.. 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 );
>> >>
>> >>
>> >> d.. 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 );
>> >>
>> >> }
>> >>
>> >>
>> >> e.. AFL added: tanh(), sinh(), cosh() functions
>> >> Hyperbolic tangent, sine and cosine function
>> >>
>> >>
>> >> f.. AFL functions: StrToUpper and StrToLower
>> >>
>> >>
>> >> g.. Fixed: Tick ASCII import: last tick of previous import was
>> > deleted on subsequent import, now it is corrected
>> >>
>> >>
>> >> h.. 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]
>> >>
>> >>
>> >> i.. GetRTDataForeign (retrieving values for other symbols)
>> >> GetRTDataForeign( "field", "symbol")
>> >>
>> >>
>> >> j.. Pane is not deleted if shrinked down to zero (prevents
> from
>> > accidential deletion of panes)
>> >>
>> >>
>> >> k.. 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
>> >>
>> >>
>> >> l.. Removed data source selection from preferences because it
>> > caused user confusion way too often
>> >>
>> >>
>> >> m.. Stock.Currency available via OLE
>> >>
>> >>
>> >> n.. 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() );
>> >>
>> >>
>> >> o.. 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
>> >>
>> >>
>> >> p.. QuoteArray resizing now uses heuristic algorithm to
> minimize
>> > memory fragmentation and increase performance
>> >>
>> >>
>> >> q.. atcFlagDeleteValues now highlighted properly in the AFL
> editor
>> >>
>> >> CHANGES FOR VERSION 4.71.1 (as compared to 4.71.0)
>> >>
>> >> a.. fixed compatibility problem with AmiQuote (due to changed
>> > order of OLE properties/method while AmiQuote was using old ones)
>> >> b.. 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)
>> >>
>> >> a.. 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();
>> >>
>> >>
>> >>
>> >> b.. 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();]
>> >>
>> >> c.. Added ability to store charts as .GIF (in addition to PNG)
>> >>
>> >>
>> >>
>> >> d.. ASCII importer maximum supported line length is increased
> to
>> > 2048 characters
>> >>
>> >>
>> >>
>> >> e.. Fixed: .aflsafe files didn't get deleted automatically
>> >>
>> >>
>> >>
>> >> f.. 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.
>> >>
>> >>
>> >>
>> >>
>> >> g.. OLE: Save As PNG / GIF callable from automation
>> >>
>> >> Example script:
>> >>
>> >> AB = new ActiveXObject("Broker.Application");
>> >> AB.ActiveWindow.ExportImage("Test.png");
>> >>
>> >> h.. 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
>> >>
>> >>
>> >>
>> >> i.. Protected against changing application's current working
>> > directory by printing to file
>> >>
>> >>
>> >>
>> >> j.. Toolbar does not get wrapped when main frame window is
>> > resized
>> >>
>> >>
>> >>
>> >> k.. 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.
>> >>
>> >>
>> >>
>> >> l.. 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
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
>
>
>
>
>
>
>
> 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
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
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