Knowledge Base

This example shows how to fill the area between Bollinger Bands with a solid color. (more…)

Filed by support at 9:01 pm under AFL, Indicators
4 Comments

Someone asked me recently how to count calendar days (not bars) that passed since first available quote. Here is a sample formula that shows how to do that. (more…)

Filed by Tomasz Janeczko at 3:15 pm under AFL, Indicators
5 Comments

AmiBroker 4.90 now has thick vertical selector line that plots behind chart lines to improve clarity and readability (selector does not cover candlesticks). Some users however prefer thin, single-pixel line. There is an easy way to switch. (more…)

Filed by Tomasz Janeczko at 6:16 am under Charting
No Comments

I have just prepared instructions how to connect to FXCM (Forex broker) to get their real-time quotes.
Also included is small example database (1 day worth of 1 minute data) and all required programs.

For the details check: http://www.amibroker.com/fxcm.html

Filed by Tomasz Janeczko at 3:23 pm under Data
No Comments

If we are backtesting the intraday strategy and we do not want to keep open positions overnight - then it’s necessary to force closing all the open positions before the session end. In order to code it in AFL - the easiest is to use TimeNum() function for that purpose. (more…)

Filed by support at 5:19 am under AFL, Systems
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Generally speaking AmiBroker (both versions: 4.80.2 official and 4.87.1 latest beta) run fine on Windows Vista RC1 32 bit and 64 bit editions (yes we checked it). (more…)

Filed by Tomasz Janeczko at 7:12 pm under Installation
4 Comments

If you ever wondered how to combine two databases into one this short article will show you how, but let us start with some background first… (more…)

Filed by support at 5:54 am under Data
1 Comment

By default the values of parameters for given indicator pane are the same (shared) for all symbols. If you want per-symbol parameters, you need to apply technique descibed in this short article. (more…)

Filed by support at 5:42 am under Charting
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The following code shows how to use separate trading rules for several symbols included in the same backtest. (more…)

Filed by support at 6:55 am under AFL, Systems
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The order stops are triggered in the backtest is the following:
 - Fixed Ruin stop (loosing 99.96% of the starting capital)
 - Max. loss stop
 - Profit target stop
 - Trailing stop
 - N-bar stop* (see below)

In versions 4.61 and higher: you can decide if N-BAR stop has the lowest or the highest priority. (more…)

Filed by support at 6:48 am under AFL, Systems
No Comments