Testing and Trading Forex Strategies https://forexsb.com/wiki/ 2026-05-08T14:32:02+00:00 https://forexsb.com/wiki/ https://forexsb.com/wiki/_media/wiki/dokuwiki.svg text/html 2011-07-23T09:50:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/account_settings?rev=1311414619&do=diff Account Settings The Account settings dialog box allows you to set the parameters of your virtual account. You can open it from Account -> Account Settings menu command of Forex Strategy Builder. [Account settings] * Account Currency - this is the currency of your virtual bank account. Statistics and the balance chart will be displayed in this currency. There are two options - account in EUR or in USD; text/html 2014-11-06T05:15:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/ambiguous_bars?rev=1415250949&do=diff Ambiguous Bars Forex Strategy Builder performs backtest of a strategy using historical bar data. It calculates each bar starting from the oldest one and finishes with the newest bar. The program interpolates every single bar using a special interpolation algorithm chosen by the user. The interpolation method serves to designate a route that the market price follows inside a bar. text/html 2011-07-23T09:50:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/calculator?rev=1311414619&do=diff Calculator [Calculator] This is an easy to use calculator. You can start it by pressing F12. Usage * Write the mathematical expression in the box. * Enter the first number the operator and the second number. * To see the result press a key or continue with the next operation. text/html 2012-05-23T07:13:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/chart?rev=1337757223&do=diff Chart You can open the main chart by clicking on the small indicator or balance charts shown on the main screen. [Indicator Chart] Chart Buttons [Chart Buttons] * grid - G * cross - C * tick volume - V * entry / exit orders - O * open lots - L * corrected position price - text/html 2011-07-23T09:50:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/command_console?rev=1311414620&do=diff Command Console The Command Console was designed to help in the development and debuging of Forex Strategy Builder but also can be useful for displaying various information. [ Command Console] Normally we write commands in the lower (white) text field. Commands: text/html 2011-07-23T09:50:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/comparator?rev=1311414620&do=diff Method Comparator We are going to demonstrate how the comparator works using the demo strategy “Demo Scanner”. This strategy is included in the Forex Strategy Builder distribution. You con load it from File -> Open menu command. [Demo Scanner Strategy] This strategy reveals about 200 - 300 text/html 2012-02-12T10:00:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/custom_commands?rev=1329040841&do=diff Custom Commands Important Notice The feature described below was incorporated into the Forex Strategy Builder codebase on 10 February 2012. It is not included in the curent release (version 2.64). The feature(s) outlined below are only available to users working from the latest source code (please see the text/html 2011-07-23T09:50:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/custom_indicators?rev=1311414620&do=diff Custom Indicators Please see the Developers Resources page for more details. text/html 2011-07-23T09:50:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/data_directory?rev=1311414621&do=diff Data Directory [Data Directory] Using the “Data Directory” menu, you can set a specific folder containing the historical data of your own choice. Every time you change the data symbol or period from the main screen, Forex strategy Builder looks for the corresponding file in the place specified here. text/html 2013-02-01T20:15:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/data_files?rev=1359749703&do=diff Data Files Forex Strategy Builder uses local data to perform historical back test. The data is stored in text files. The program uses this type of files in order to allow users to easily edit or amend the trade rates. This article explains how the files are named, where they are placed in the directory of the program and how they are formatted. text/html 2012-05-20T10:19:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/data_horizon?rev=1337509156&do=diff Data Horizon [Data Horizon] The dialog window “Data Horizon” serves to set limits on the historical data. These conditions are valid for the loaded data only. They do not concern the original files. * Maximum data bars - this is the maximum number of bars that will be loaded. text/html 2011-07-23T09:50:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/entry_filter?rev=1311414622&do=diff Opening Logic Condition Introduction [Opening Logic Condition] Opening Logic Conditions can be found in the blue slots below the Opening Point of the Position slot and above the Closing Point of the Position slot. By clicking on the Add an Opening Logic Condition button you can add technical indicators to your trading strategy for fine-tuning the logic of the trading algorithm. By default you can't set more than four Opening Logic Conditions. The logic is checked separately for long and short… text/html 2011-09-12T13:08:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/entry_point?rev=1315832902&do=diff Opening Point of the Position Introduction [Opening Point of the Position Slot] The Opening Point of the Position slot is situated above the other indicator slots and under the Strategy properties slot. There is only one Opening Point Slot for each strategy and it is used to set the price for entering the market using an indicator or a particular time. At this price the program will open a new position or add to an existing one. text/html 2014-09-29T18:33:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/exit_filter?rev=1412015624&do=diff Closing logic condition Introduction [Closing Logic Condition] The Closing logic conditions slots are available only if you have selected Bar Closing in the Closing point of the position slot. These slots can contain logical condition indicators. To add a closing logic condition you must click on the Add a text/html 2011-07-23T09:50:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/exit_point?rev=1311414623&do=diff Closing Point of the Position Introduction The Closing point of the position slot is situated under the Opening logic conditions slots. In this slot you can place an indicator which sets the exit price of the strategy. This price is used to close a position. You cannot open a new position at this price. text/html 2011-07-23T09:50:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/explorer?rev=1311414623&do=diff Bar Explorer The Bar Explorer instrument shows what the price route during the bar is. Its function is to make the sequence of order execution clearer. We normally open the Bar Explorer from the Journal by double clicking on a bar row. It is also accessible from the main text/html 2011-07-23T09:50:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/fibonacci_calculator?rev=1311414623&do=diff Fibonacci Levels Calculator Leonardo Fibonacci (1170 - 1250) was a Middle Ages mathematician born in the Italian city of Pisa. He is best known for his “Book of Calculation” and the number sequence named Fibonacci Numbers. [Leonardo Fibonacci] In the Fibonacci sequence of numbers, each number after the first two is the sum of the previous two numbers. Thus, the sequence is 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, etc. Fibonacci ratios derived from this sequence of numbers are 0.382… text/html 2014-09-27T13:29:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/forex_strategy?rev=1411824562&do=diff Forex Strategy Strategy - a carefully thought over action plan for achieving a certain goal. When it comes to financial markets, a trading strategy can be defined as a strict system of methods and criteria providing answers to the following questions: text/html 2013-03-10T07:52:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/generator?rev=1362901934&do=diff Strategy Generator Video introduction: [Generator Demo] The generator can be used to create new strategies or to improve existing ones. Its major goal is achieving an optimal balance and complying with the chosen criteria. The generator saves every better strategy in a list. You can load a previous or next strategy from this list when you are on the main screen of Forex Strategy Builder. To do so, use text/html 2011-07-23T09:50:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/indicator_parameters?rev=1311414624&do=diff Logic and Parameters of the Indicator [Logic and Parameters of the Indicator] This dialog window contains all indicators, which are applicable for the particular indicator slot. Here you set the logic rule and the parameters of the indicator. You open this window by clicking on an indicator slot or on a button for adding additional logic conditions. text/html 2014-09-28T06:43:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/indicator_slots?rev=1411886618&do=diff Indicator Slots The indicator slots are the main structural units of a strategy. They are four kinds: * Opening point of the position sets the entry point of the position; * Opening logic conditions decide whether to open a position when the market price reaches the opening price. To open a position all presented opening logic conditions must be satisfied; text/html 2011-07-23T09:50:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/installation?rev=1311414624&do=diff Installation * Download the installation file ForexStrategyBuilder.exe, using one of the links supplied in the Download Page. * Double click on it to run the installer. * Read and accept the users' license agreement. * Choose a destination folder. By default, the installer makes folder Forex Strategy Builder into your Program Files folder. text/html 2012-05-20T10:18:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/instrument_editor?rev=1337509127&do=diff Instrument Editor [Instrument Editor] The Instrument Editor tool is divided in three functional parts: Instruments, Instrument Properties and Add an Instrument. Instruments The Instruments panel shows a list of all the symbols set in Forex Strategy Builder. You can change the position of a symbol by moving it up or down. You can also delete any of the presented symbols except the current instrument loaded in the program and the EURUSD symbol. By double clicking on a symbol, you load it in th… text/html 2016-04-10T19:32:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/interpolation_methods?rev=1460316739&do=diff Interpolation Methods Following a fixed route, Forex Strategy Builder goes round each bar in order to execute or cancel all orders sent by the strategy. This route is determined by the four base points - Open Price, High Price, Low Price and Close Price text/html 2012-05-24T09:34:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/iqfeed_esignal_data?rev=1337852073&do=diff Using IQFeed and eSignal Data It is possible to use data from DTN IQFeed and eSignal within Forex Strategy Builder. In order to use data from these providers, you will need: * An account with one (or both) providers with access to the data that you wish to access; and text/html 2012-05-24T09:33:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/jforex_data?rev=1337852011&do=diff Import jForex Data Files jForex is a platform of DukasCopy. It is able to export good quality historical data files including tick data. Download Data [jForex Data Export] * Make a folder for the Dukas data. * Load and save all time frames you need. (In order to use the tick data backtester, you need the corresponding bar data also.) text/html 2011-07-23T09:50:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/language_tools?rev=1311414625&do=diff Language Tools The language tools are accessible from View -> Language Tools menu. They are useful when a user wants to make new or edit some of the existing translations of the program. [Language Tools Menu] Make New Translation After selecting Make New Translation command, the text/html 2012-07-12T14:11:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/logical_groups?rev=1342102271&do=diff Logical Groups The logical groups expand the strategy logic. FIXME Under Construction! text/html 2012-05-24T09:59:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/metatrader4_data?rev=1337853552&do=diff Import MetaTrader4 HST Files Forex Strategy Builder supports the direct import (and conversion) of data from the native HST files used by MetaTrader4 by using the Import MetaTrader4 HST Files ... function in the Market menu. Preparation No special preparation is needed, although it is important to remember that MetaTrader4 writes data to HST files when the application is closed, so although the import process will function if MetaTrader4 is running, the HST file will only contain the most r… text/html 2013-02-13T11:34:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/metatrader_data?rev=1360755245&do=diff Using MetaTrader Data In this lesson I will demonstrate how you can use MetaTrader data to conduct the historical test. I assume you have an account (real or demo) with a MetaTrader broker. I will load EURUSD data, but the principle is the same with the other pairs. I will limit the used data up to the year 2000. text/html 2017-02-14T12:53:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/oanda_data?rev=1487076798&do=diff Import Oanda Data Files Data Files Acquisition Oanda (https://www.oanda.com/) offers tick data for five majors pairs, dating back to January 1st, 2004. To access the data you must currently be a live account holder with Oanda. Unfortunately demo accounts don't provide access to the data. *See below. text/html 2012-05-31T20:00:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/optimizer?rev=1338494431&do=diff Strategy Optimizer [Strategy Optimizer] The Strategy Optimizer changes the digital parameters of the marked indicators, within preset limits, in order to achieve a higher profit in the back test. When the optimizer is opened, it loads the strategy from Forex Strategy Builder with its current parameters. In order to make it easier, the optimizer sets the Minimum and Maximum limits of the parameters for you. It uses the current value and adds or subtracts five steps. It also randomly selects … text/html 2011-07-23T09:50:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/out_of_sample?rev=1311414625&do=diff Out of Sample Testing Out of Sample, aka OOS is a method of testing which puts the strategy in unknown waters. text/html 2011-07-23T09:50:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/overview?rev=1311414626&do=diff Strategy Overview [Strategy Overview] You can open the “Strategy Overview” information box using the Overview button, which is situated over the indicator slots, or using the fast access key F4. “Strategy Overview” displays the author's description of the strategy and automatically generates information about the logic employed, the indicator slots and the statistics on the strategy. text/html 2012-05-23T07:14:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/panel_account?rev=1337757266&do=diff Account Panel [Account Panel] The Account Panel displays users' statistics and their virtual bank account charts Account Statistics Historical backtest statistics are displayed here: Intrabar scanning Not accomplished Interpolation method Pessimistic scenario Ambiguous bars 0 Tested bars 4858 Initial account 10000.00 USD Account balance 12377.00 USD Minimum account 10000.00 USD … text/html 2012-05-24T09:05:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/panel_journal?rev=1337850325&do=diff Journal Forex Strategy Builder performs automatic calculations and offers detailed information about the transactions, orders and positions in each back test. The journal can be viewed in three formats: Journal by Positions without Transfers, Journal by Positions and Journal by Bars. You can toggle between formats by using the options in the View menu, or the button at the top left corner of the journal. The journal can be closed by using the options in the View menu, or the button at the to… text/html 2012-05-23T07:17:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/panel_market?rev=1337757437&do=diff Market Panel [Market Panel] This panel allows you to choose the market data that Forex Strategy Builder will use to calculate the current strategy. It shows also market statistics and a simplified indicators chart. Instrument Symbol FSB comes with several preset symbols. You can add more currency pairs or other instruments to this list with the help of text/html 2012-05-31T20:07:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/panel_strategy?rev=1338494870&do=diff Strategy Panel [Strategy Panel] This is the main part of the program - the place where you set a strategy. A tool bar is situated at the top of the panel. It contains buttons for opening some tools related to the strategy: Overview, Generator, Optimizer, Strategy Description text/html 2011-07-23T09:50:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/pivot_points_calculator?rev=1311414627&do=diff Pivot Points Calculator [Pivot Points Calculator] Pivot Points Calculator calculates the Pivot Points using the input prices. When you first open it from the Tools -> Pivot Points Calculator menu, it loads the prices from the last data bar currently loaded in Forex Strategy Builder. If you change the prices, the program will automatically recalculate and show the new PP. text/html 2011-07-23T09:50:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/portable?rev=1311414627&do=diff Portable Copies Forex Strategy Builder can be easily moved or copied on another location. It does not depend on the Windows registry and keeps all the necessary data, strategies, and settings located in its file structure. After a normal installation, you can copy the whole Forex Strategy Builder folder on another place. The program's folder contains some files, which are used only from the uninstalltion program and therefore, you can freely delete them. text/html 2011-07-23T09:50:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/profit_calculator?rev=1311414628&do=diff Profit Calculator The Profit Calculator tool can be started from Tools -> Profit Calculator menu from the main screen of Forex Strategy Builder. [Profit Calculator] The program uses currently set in the Instrument Editor trading charges. When you change the input values, the Profit Calculator instantly calculates the trade Net Profit and the charges applied. text/html 2011-07-23T09:50:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/publish_strategy?rev=1311414628&do=diff Publish Strategy You can use the Publish function to post a strategy in the Forex Forum. [Publish a Strategy] Usually, forums apply a specific formatting syntax to postings. This is called BBCode. To help your work, Forex Strategy Builder automatically applies the appropriate syntax to the published strategies. text/html 2011-07-23T09:50:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/removal?rev=1311414628&do=diff Removal To remove Forex Strategy Builder from your computer use the uninstall icon in the Windows Start Menu. You can also use the “Add or Remove Programs” tool from the Windows Control Panel. Bare in mind that when you uninstall the program, the files that are not included in the initial text/html 2014-10-24T20:40:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/requirements?rev=1414183222&do=diff System Requirements The only important requirement of Forex Strategy Builder is that you should have Microsoft .NET Framework v2.0 or newer. This is the new program model of Windows for managed code. You will need this Framework for many other programs. Windows 7 and Vista include .NET framework in their standard installations. However, if you use older Windows version, you have to download and install .NET v2 or higher from Microsoft. text/html 2011-07-23T09:50:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/scanner?rev=1311414629&do=diff Intrabar Scanner The scanner serves to improve the accuracy of the strategy backtest when Ambiguous Bars occur. [Intrabar Scanner] When Scanner starts it loads all available intrabar data for the respective financial instrument. Scanning is carried out automatically. In case you have updated the data, you can use the text/html 2011-07-23T09:50:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/screen?rev=1311414629&do=diff Main Screen The main screen of Forex Strategy Builder is divided into 7 functional parts: [Main Screen] * Main Menu - you can access the main commands and tools from here; * Market Panel - you can choose the financial instrument and the time period of the data from here, set the trading charges, view data statistics and indicator chart; text/html 2014-10-10T07:05:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/start?rev=1412924730&do=diff User Guide This is the online help of Forex Strategy Builder - Overview. It contains information about the user interface, the different dialog windows and tools, and some articles about the main concept of the program. Feel free to edit or expand the information in the articles. Ask your questions in the comments to the pages or use the text/html 2011-07-23T09:50:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/statusbar?rev=1311414630&do=diff Status Bar [Status Bar] The status bar is divided into three zones which show additional information: market information, dynamic chart data, time and date. Market Information This zone is situated in the left part of the status bar. It displays the symbol and the period of the financial instrument in current use. The brackets contain the spread values, the swap numbers and the slippage value. text/html 2012-07-30T19:33:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/strategy_description?rev=1343676815&do=diff Strategy Description [Strategy Description] This instrument allows you to read, edit or write a description of the current strategy. You can open this description editor tool from a button located in the tool strip above the strategy slots. [Strategy Description Button Position] The button can be shown in three variants depending on the description: text/html 2012-04-21T08:27:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/strategy_properties?rev=1334996877&do=diff Strategy Properties [Strategy Properties] Here you can set the strategy's behaviour when additional signals are sent, the amount of the sums traded and the permanent limitation of loss and profit. These parameters are a part of your trading strategy. They are saved together with it and apply to it only. text/html 2012-05-23T07:16:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/strip_testing?rev=1337757362&do=diff Testing Strip [Testing Strip] This toolbar contains the drop-down menu where you can choose the interpolation method, as well as the buttons staring the method comparator and the intrabar scanner. Interpolation methods During back testing Forex Strategy Builder enters in each data bar and seeks for orders in its range. However, sometimes there is more than one order available and the program has to choose which of them to execute first. The text/html 2011-07-23T09:50:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/trading_charges?rev=1311414630&do=diff Trading Charges [Trading Charges] You can set the respective trading charges here. * Spread - the difference between your broker's buying and selling price in pips. * Swap Numbers - these numbers represent the difference between the interest rates of the trading currencies in pips. They are accrued when a position is transferred into the following business day. This has the same effect as when the average price of the position is moved with the set number of pips in the respective dire… text/html 2012-07-08T17:50:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/truefx_data?rev=1341769850&do=diff Import TrueFX Data Files Data Files Acquisition TrueFX offers historic tick data from 2009, for 15 major currency pairs. Registration is free, and you don`t need to have live account. Accessing and downloading data is very simple, required steps are: text/html 2011-07-23T09:50:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/true_charts?rev=1311414631&do=diff True Charts text/html 2011-07-23T09:50:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/updating?rev=1311414631&do=diff Program Update Forex Strategy Builder automatically checks whether a newer version is available and if so, an update message appears on the main toolbar - A newer version is available. [Newer version label] After you have downloaded the latest FSB, you can install it straight away (you do not have to remove the older version). Thus, all the files and forex rates you have added will be kept intact. text/html 2016-05-14T10:13:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://forexsb.com/wiki/fsb/manual/use_previous_bar_value?rev=1463220830&do=diff Use Previous Bar Value When “Use Previous Bar Value” option is activated, we use the value of an indicator from the previous bar for a logical criterion concerning the current trade. The purpose of this concept is to make a backtest reliable. Let us see the following example: