Amibroker barindex My Concern Hi All, I have been using the following statement for getting the last value of Close. A PF has a value PL. afl; Click on the link to browse document files on line, or, Save As to download an @Sandy, please, review the documentation of the PriceVolDistribution() function. Send the FORMULA. I've searched into the forum and into the KB but I can't find a solution. I would like to know whether these Pivot lines are drawn repeatedly every //The below code returns the last bar closing price for a ticker and writes it to the Analysis Window using the heading “Last Bar Close” LastPrice = Close[ EndValue( BarIndex() There is an easy fix for that – AmiBroker allows to specify the Z-axis position too, so we can shift the visibility and order of plots (including their position against grids and other elements) by means of Z-order argument of If option 3 is suitable, then how would I distinguish in Amibroker which exchange a security belongs to (LSE or ASX)? A4. 24 and earlier. com 2007-11-03 Hello Friends of Amibroker, i have a Problem i´m not so good a coding. I want to execute some code only on/after lastbar on chart. Basic price pattern detection. It is also worth noting that when QuickAFL is used, BarIndex() (AmiBroker 4. I receive hourly Forex data from my broker. The index depends on the number of bars in that array. I have a problem with BarCount. they are not giving desired results. com 2007-11-03 Hello, I select a tag/bar in a chart with a mouse click, the return value is "BarIndex()". What I want is SelectedBar or the Bar NUMBER of the selected Bar. Here is the @carlosrodrgueznieto,. com 2007-11-03 Hi, I am working on a strategy, which will generate a buy or a sell signal according to the logic. if the signal is generated then I am posting signal to service (external service). FOR CURRENT INFORMATION USE www. "HHVBars( High + 0. But when I compare those values in 'Exploration' window, the results are (AmiBroker 4. First index number of an array item is 0. Therefore, if we want to place stop at From how-to-ask-a-good-question. @PanoS I am wondering if he uses DateNum() ( BarIndex(), _DT( StartDate ), 0 ); FinishBar = Lookup( tj --at-- amibroker. The code snippet below fills an array named data Is it possible to create a custom backtest metric that would display the metric (CAR/MDD and profit %) for a specific data range during an optimization? i. In AmiBroker Bar number, like time, INCREASES. I tried using Lastvalue, SelectedValue. Yet a 200 day moving average has a value tj --at-- amibroker. Can I get some advise on getting What I have been able to achieve is getting the BarIndex() values at the pivot points and using those to color code the desired bars after the first pivot only. 0001 * BarIndex(), 28 ) works but if I go to another decimal place as per above, i. If you need to see a distribution for the last few days, you should change your code accordingly. You will undoubtedly experience /* Hello seasoned AB users. p_barindex. 30) SYNTAX: BeginValue( ARRAY ) RETURNS: NUMBER : ( BarIndex() ); StandardDeviationInTheRange = EndValue( StDev( Close, Period ) ); SEE ALSO: Hello, I'm facing some problems when trying to implement a bar stop, which exits a trade after e. On the other hand AmiBroker Community Forum Barindex null with custom intraday data. BarCount is a numeric variable that holds just one number (the count of elements in array). This means that in virtually all cases you have to manually zoom and restore tj --at-- amibroker. good morning to all, (when usebarindex = False) Hi, Some of my MR systems for stocks took a beating during the last weeks so probably time for some more tests - I thought. To search the forum just use magnifying glass icon in the upper right corner . com 2007-11-03 If we apply modulus to consecutive numbers such as BarIndex() – then calculating the reminder from integer division of barindex by N will return 0 every Nth bar (on bars that are divisible by I have a small piece of code where I find a bar where conditions are met. 00001 * BarIndex(), 28 )" it doesn't. BarIdxArr = BarIndex(); priceBoundArr = IIf(Close >= lowerBound AND Close <= upperBound, 1, 0); firstBar = ValueWhen(priceBoundArr, BarIdxArr); Original post: I have a set Hi, I am exploring AFL. The base TimeFrame is for @kgalea, more in general, if you know the bar index (see BarIndex()) you can access its corresponding date also using the array bracket notation:. I created a very simple indicator to set the bar color to red if the current bar is a down close. I created this In this example we will present a method to plot automatic support and resistance lines based on recently hit highs/lows. I have successfully created my buy and sell signals. So If I want to know current bar how can I get it ? BarIndex() == BarIndex() Is ALWAYS true (returns True for all bars). However for a filter i use the low Hi, The code below creates a linear regression trendline and two bands at 95% and 5% of the frequency distribution of the Price-Trendline difference. com 2004-07-23 07:07:29: When QuickAFL is ON, the BarIndex() may not be equal with array item index. AFL Programming. What have I goofed up I can see from my printf statements that BarIndex is not changing during a chart @Night19 this is beyond my knowledge of AmiBroker but am curious. As to point #2:. All Thanks Mr. and now when i Hello, I am looping through the data. this is the biggest confusion for new AFL programmers. We can use the following When starting up AmiBroker the chart range defaults to the last number of bars set in Preferences. BarIndex() returns an array and LastValue() returns a number. You may force AmiBroker to use only 1000 bars prior first visible even though Cum() by itself would require all bars. ** Retracement / Extension Indicators or Tool I am wanting to essentially have 2 x Fibonacci Dear Colleagues, I understand the limitations of the IEEE floating point standard. I use real time data. I got the desired result by using your advise. e. 2DD March 19, 2022, 12:35pm 1. 30. ] and want to draw Hi, The Code attached Below finds the proper Value of Highest High Volume of DAY BEFORE YESTERDAY in 5 min TF. The formula that you are using is a problem. It uses BarCount instead of BarIndex in ValueWhen call. I'm experimenting with plotting a line from where my system gets into a trade, to where the current close price is, through concatenating a date and time If we apply modulus to consecutive numbers such as BarIndex() – then calculating the reminder from integer division of barindex by N will return 0 every Nth bar (on bars that are divisible by N). It is the 3rd party plugin who is the real culprit here. ATTENTION: THIS SITE IS OBSOLETE. ValueWhen(BarIndex() == BarIndex(), Combo); is equivalent to: ValueWhen( True, Combo) I'm lost on this one. I just don't have The below should work for all bars if condition1 has already occurred at least once up till that bar. I amended the code as per your advise ad below is the hi, anyone use the FFT function successfully yet? what I was trying is the calculate the FFT of the last 2^5 data points and then reconstruct the time series from the frequency HHVBars( High + 0. 30) SYNTAX: EndValue( ARRAY ) RETURNS: NUMBER : ( BarIndex() ); StandardDeviationInTheRange = EndValue( StDev( Close, Period ) ); SEE ALSO: Hi I am trying to test the quick AFL concept in an Analysis window. I am trying to count the number of bars between 2 different point and then print said There is a fundamental difference between BarCount and BarIndex(). com 2007-11-03 Hôm nay mình sẽ giới thiệu và giải thích một số hàm hay dùng để xử lý bộ lọc cổ phiếu trong Amibroker. In order to draw horizontal lines showing levels of recent HHV/LLV values and start drawing at the point Designing Automated-Trading systems can be complicated, and you can expect to spend a significant amount of time debugging your code. Hi there, i am a complete noob when it comes to afl, and I hope you’re willing to help. However, when a stock does NOT meet the listing condition the Exploration still lists every quote for that stock AmiBroker Community Forum Linear Regression dynamic length. AddColumn ( ValueWhen ( cond, bi ), "ValueWhen( cond, BarIndex() )" ); AddColumn ( ValueWhen ( cond , Close ), "ValueWhen( cond, Close )" ) If you run above code Thanks a ton @Anthony for helping me out. Is there any correct approach to find the number of I need help in converting the formula to a study so that i can retain settings pertaining to start bar, multiplier, base_factor and other parameters for every symbol thank you Hi mates, I'm having some troubles with barcount. Play a little with this modified Hi, Within my afl code, I have ‘startBar’ and ‘endBar’ that denotes the start and end bar number of a set of bars. I am trying to find the Highest price and Lowest price within this AmiBroker Community Forum Minimum Bars & Calculating Volatility. So not an array with numbers. "AccountMargin" should be set to 100, not to 1. Please follow this advice: How to ask a good question The picture that you have sent suggest I still want to see the pre- and after-market sessions in the chart. Multiple open positions per symbol allowed. Below is my code and it is much faster (90% faster) and shorter then the one of post #1. But maybe try something like this, dn = Day(); newDay = dn != Ref( dn, -1 ); // first bar of new day ThirdBar = @santy this KB article shows a technique to Detect Look-Ahead Problems. With hat scanner you can find stable trending stock in a correction. intraday, timeframe, optimize. NOTE: if you are on 1 I am trying to draw VWAP for a last hour of the trading session (14:30 to 15:30). In some situations however, we may want to draw some selected bars, leaving remaining chart space unaffected. The afl was shown as follows: _SECTION_BEGIN("Q_Plotarrow last bars"); PositionToPlot = When starting up AmiBroker the chart range defaults to the last number of bars set in Preferences. 01); sarsigs = C < sar1 AND Ref(C,-1) > Ref(sar1,-1); BarNum = SelectedValue(ValueWhen(sarsigs,bi)); Hi, How can I know the Bar Volume >= HHV( Volume, Bars_so_far_today ) Volume is greater than or equal to highest value in total number of bars today. The function BarsSince() will return number of bars (time periods) that have passed since ARRAY was true (or 1) for the 1st occurrence of the condition true. I have used the below code in a prior program that seems to work fine but in my new program is returns the Close price for the first bar only and I In AmiBroker close[ 0 ] is the OLDEST bar in the database. Retrieve the DateNum array by calling the afl function from your dll. Highest index number is the most current I want to get barindex, O,H,L,C values as numbers instead of arrays. FFT - performs Fast Fourier Transform (AFL 2. How can the GuiButton be positioned so that the x,y coordinates relate to the barindex and the price? For tj --at-- amibroker. So I have Blank bars variable is added to begin bar index and in spite of that there are no blank bars at the end of the chart. If we apply modulus to consecutive numbers such as BarIndex() – then calculating the reminder from integer division of barindex by N will return 0 every Nth bar (on bars that are So what's the easiest way to detect high-tight flag or power play using Amibroker? Well here's the code: //HTF detection // Loop backwards, set detection limit to 15 weeks (pole I'm testing the creation of a new indicator to see how it works when added to a chart using drag and drop. bi >= StartBar is the the condition to check I am trying to identify and group similar values that i call cluster. szelidvihar July 23, 2021, 4:59pm 1. I'm not really sure if this is indexing problem in my logic or my code just can't find the True condition of final_CondBar in Compressed M5, Somehow the M5 price level and barindex (compressed & expanded) plot in M1 chart, is The discussion from GuiButtons for everyone is comprehensive but does not (imho) adequately discuss button positioning. If previous PF is PL distance (or nearer) before it than the Again I am hanging on a seemingly easy portion of code for which I didn't find any comments. Generally speaking, the main scope of the script I'm writing is to evaluate some parameters for AFL Function Reference - Categorized list of functions. When I apply timeframeset and timeframeexpand (like tj --at-- amibroker. 90); GapDown - gap down ; GapUp - gap up ; Inside - AmiBroker Version = 6. I got the logic to write but my syntax is wrong. barindex() has a value of 2. I am optimizing Data are fine. Thanks for the detail info. I am Hi there. This code uses Percentage to define boxvalue. i need to find number of bars exist in a particular day. . Daily). Graham Kavanagh, I have edited the code to some extent for my purposes. The code provided uses the Zig() function (that looks ahead by varying amounts so it is perfect for mradtke thank you for your reply and all the advices you have given me till now i was able to do see things in AB, i will add a Signal() column to my exploration. I am trying to BarIndex(), not getting result. While I was trying to figure out how to approach this objective - I @minav, you need to change a line of your code:. newbie. Version 5. BarIndex() returns zero-based bar number, so if you have for examplle 100 There is an easy fix for that – AmiBroker allows to specify the Z-axis position too, so we can shift the visibility and order of plots (including their position against grids and other By the way, if you draw a trendline holding X key pressed, you will get perfect vertical line. Close_price = Close; current_close = Close_price[BarCount - 1]; I flip through all the daily Hi Experts, I have written an AFL code which initializes the OHLC values of first 3 candles created. How to ask a good question. In easylanguage this is done with if islastbar then but whatever I tried to Hello, I apologize, if this has been ask before, but how would you make variable for price level, which has been a support and resistance in the past for multiple times? I was thinking something like this, but with this approach, I I am trying to check if number of bars are more after high was made, or if the high was made before the new candle/last candle. I am trying to count the number of bars between 2 different point and then print said number . com 2007-11-03 Hi, Everyone I am a newbie for amibroker user and I try to write some Afls. (AmiBroker 4. com 2007-11-03 bi = ValueWhen(arr_test > 0, BarIndex(), "nth occurence - 0 is the latest"); bars_since = LastValue(Close) - bi; Here, I'm just using LastValue to get the last barnumber of I noticed some interesting behavior with ValueWhen() today, and wondered if it is intentional and/or documented anywhere. Parse your date string and calculate the DateNum (10000 * (year - 1900) + 100 * month + day). (when I zoom By default, the Plot function draws the graph for all visible bars. Hi, I get Hi ! Is amibroker have function to get current bar in terms of number ? Because of Funcion BarIndex() return in terms of array. Long story short, I wanted to play around with a I have written the following exploration as a learning exercise. 2 Bar in the higher-TimeFrame (e. Basically it shows the area from the pivot point + 5%, the Below an example of how I would plot a single price array in gfx. for example when I use barcount in a program it count only some last bars showed in the chart window or some more. What I want to do is keep track of the average Hello! I would like Amibroker to open a CSV file and import/read a list of dates from one of its columns. com 2007-11-03 SYNTAX: Sort( array, first = 0, last = -1, indexmode = False ) RETURNS: ARRAY : FUNCTION: Sorts a numerical array in ascending order starting from first element ending at last element. com 2007-11-03 Hi, I would like to run multiple buy and multiple sell rules on 1 symbol. I would like to know what was the lowest low since the bar ID, till the current bar in Without margin, Equity is simply Cash PLUS value of all currently open positions. Extension or Retracement Formula Required ~ Fibonacci Drawing / Indicator Q’s. Start and End Date is supplied by user using Param Window. Quick and IIf (BarIndex() >= StartBar, VWAP = Sum (C * V, Bars_so_far_today ) / TodayVolume,0); Plot (VWAP,"VWAP",colorRed, styleThick); Close_price=Close; Sumsince SelectedValue gives me the Value of the selected Bar. tj --at-- amibroker. If we want to refer to future values, there is an easy way to do it using simple Ref The question is barIndex (FirstHighestBarIndex) results. com 2007-11-03 SYNTAX: GfxSetCoordsMode( mode ) RETURNS: NOTHING : FUNCTION: The function allows to switch co-ordinate system for low-level gfx functions: mode = 0 - the default screen pixel I know this is a basic question but I want to be sure. Actual array item Rolly rollyzhang [at] hotmail. i searches for a Just when I think I'm starting to understand AFL, then reality kicks in. Empottasch for improving my python code and sharing with the Amibroker community. 0 First some background. The line are plottable in the Hello, I need to calculate distance between High at BeginValue(BarIndex()) and Low at EndValue(BarIndex()). Does AFL array start with index 0 or 1? From this page, I get the impression that the first bar index in the array is 1. This is your quote "I need to store Using this method AmiBroker needs to read the data for all tickers, prepare arrays, then evaluate the formula and verify the condition – so using Filter window and the first approach will be faster, as the filtering is done before the tj --at-- amibroker. The chart has 3 daily bars. Follow the forum rules first: How to use this site ; Please use the search field in this forum, there are high Hi, I use an afl which draws Daily, Weekly and Monthly Pivot points on the chart. com 2007-11-03 Hi, Could someone help me? I was trying to find Vwap not only for intraday but also for more historical DAta. The API's example compares the two to give the boolean ThisIsLastBar. I believe that I would need to create an array of these dates? Open the AmiBroker Knowledge Base – 22 Apr 09 Study() function in logarithmic scale. The tj --at-- amibroker. This is expected of course - hence this Search the forum It is good idea to search the forum before asking same questions over and over. It works well for the most part but has one flaw tj --at-- amibroker. Every buy 1 gets a corresponding sell 1 which results in There is a fundamental difference between BarCount and BarIndex(). I want to have it all in one scan, with each timeframe having its own alert text output. 25 @PunitRaj I don't use intraday data much and that answer above is from a question more than 4 years ago. But how do i make this work for a bar when condition1 has not occurred even I would like to create a tool for Amibroker that mimics Marketsmith's Entry/Exit Window as the one pictured below. But due to these limitations it is impossible to work with arrays in the database, in which, for ApplyStop function by default requires us to provide stop amount (expressed in either dollar or percentage distance from entry price). SetOption( "MCEnable", 2 ); // value == 2 forces MC to be enabled everywhere (in every mode including optimization - SLOW I want to get the barindex of the current bar according to the hourly timeframe, from a script that runs on the 1m timeframe. In variable px0 I have bar ID from my other calculation. LRStyle = ParamStyle("LR Style"); LRLine = IIf( x > (lastx - Daysback) AND Hello, I want to scan a certain strategy (from an indicator that gives Buy/Short signals) in multiple (6 different) timeframes (intraday). Search the There is a fundamental difference between BarCount and BarIndex(). On the other hand If we apply modulus to consecutive numbers such as BarIndex() – then calculating the reminder from integer division of barindex by N will return 0 every Nth bar (on bars that are divisible by N). I tried following but some thing is missing _SECTION_BEGIN("VWAP (EOD) "); I am looking for a measuring tool / formula that can be used to: Measure between 2 points on a chart (Dates or positions) (any direction) To have the day count measured, the bar hi guys, this is probably easy, i probably had the problem before but I forgot why it happens. Then need to count bars between the 2 When starting up AmiBroker the chart range defaults to the last number of bars set in Preferences. It looks something like above. With your current code AmiBroker Community Forum LineArray and fixed interval. Now I want find HIGH & LOW of the previous bar. From this bar I want to draw a vertical line a few bars further and then from the Seniors please help ! I am stuck with something might be silly but can't figure out anything I want to create an array of number like X = [31,37,42,49,55. g. How could an array be compared with a number? barindex is the "id or index number" for the exact "bar position" in an array. However, there's a key difference. Just the idea behind that code is mine. com 2007-11-03 @Jay1, in indicator mode, the first visible bar index is the one you get with FirstVisibleValue( bi ); as per your first line (you do not need to add anything). Some platforms have this option for Vwap build in. As to point #1:. I am clueless for the Specific bar's Time number and tj --at-- amibroker. IMPORTANT: This article applies ONLY to AmiBroker version 5. com/kb Hi there, i am a complete noob when it comes to afl, and I hope you’re willing to help. com 2007-11-03 I am making small teaks to a common Automatic Fibonacci script to enable it too much much more effective with exploration. 30) SYNTAX: BeginValue( ARRAY ) RETURNS: NUMBER : ( BarIndex() ); StandardDeviationInTheRange = EndValue( StDev( Close, Period ) ); SEE ALSO: This would look like a repeat question. This has already been covered, see valuewhen-and-null-values . If Excellent @fxshrat. The problem is that it executes ~1000 slower than the build in Plot(). It gives the results above 7000, but the total number of historical bars available for the given Symbol is only around 400. Please listen, the code (snippet) I've posted does give you exactly the values of that range you were asking in 1st post. To achieve that – we simply assign Null There are additional variables not defined later in the code. so I have the code shown below. On the other hand Hello, is there a straight way to retrieve the bar index of the first bar used into an exploration? I've tried using "BeginValue(array)" to workaround, but this work only after Hi all I have found very interesting the safe-f method to evaluate a trading system, as explained in the QTA book ; and I have tried to have an AFL code, using some suggestion I You may force AmiBroker to use only 1000 bars prior first visible even though Cum() by itself would require all bars. This code is actually not mine. I do have Hi All - I am using PnF chart Afl by Mr. So please help me. This means that in virtually all cases you have to manually zoom and restore the chart range you were previously working Built in HHV and LLV functions allow to read highest high or lowest low of n-past bars. It is also worth noting that when QuickAFL is used, BarIndex() AmiBroker looks for IsNull() as part of its inner workings. We can use the following Hi all, I have recently purchased Amibroker as i was impressed with the trial and am trying to port over a mechanical strategy i use. Your code is WRONG. Similarily when you draw a trendline with Y key pressed, you will get perfect tj --at-- amibroker. Peter2047 February 4, 2021, 11:45pm tj --at-- amibroker. Similar to what @fritz pointed out, many variables are conditionally assigned and may be uninitialized. my_date = dt[56]; // I tried using bi = BarIndex(); sar1 = SAR(0. The below code is not giving me desired result. amibroker. BeginBarIndex = ValueWhen( LastValue(BarIndex())- @Tomasz @fxshrat Can any one write afl code for different zoom type For Example If I Select 1min time-frame zoom to recent 1 days or 375 bars If I Select 5min time-frame zoom How would something like this be implemented ? I get how amibroker uses arrays but I totally feel lost when it comes to thinking a work around. I've chosen the New York rollover time of 17:00 for the beginning of the day bar. It seems that in the AW my code takes into account the entire database (as if I had set There are many examples, but looking at ticker SOVO in the attached image.
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