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Tutorial 202 seeks to look at the RSI calculation and calculate what price (this bar) needs to be for the RSI to reach (or go down to) a specific value. To achieve this the calculations the RSI calculations are solved for Price (i.e. price this bar). Because the above formula includes AbsValue, we actually solve for two eventualities (i.e when price is greater than price last bar and when price last bar is greater than price this bar). See https://markplex.com/free-tutorials/tutorial-202-calculate-price-to-reach-a-user-input-rsi-value/

In tutorial 201 trendlines drawn on the chart are are analyzed and text is added to the chart, associated with the trendline. The contents of the text can include, either points value, dollar value, ATR multiple (before the trendline), number of bars or a combination of all this information depending on the setting of a user input: ShowValue. The ATR value being shown is actually the multiples of ATR (calculated before the move) for the move, not the ATR value. If the chart is refreshed the program recalculates the values based on the trendline objects that remain on the chart. This also occurs if MaxBarsBack is set to auto-detect. In this case, when a drawing object is added earlier on the chart to the current drawing objects, the chart recalculates. If the lines are moved or either of the start or end positions are changed, the text label is updated. The free download is available here: https://markplex.com/free-tutorials/tutorial-201-trend-line-drawing-tool/ Remember to subscribe to the Markplex email list at https://markplex.com

Collections for EasyLanguage is a versatile and powerful programming feature that allows TradeStation EasyLanguage to manage and manipulate groups of data efficiently. _Quick-tip 89 explains how to import a comma delimited text file into an ELCollections collection of lists. In this example the lists include list of numbers and lists of strings. The quick-tip also demonstrates ways of accessing the data once the text file has been imported. See https://markplex.com/free-tutorials/tradestation-easylanguage-quicktips/quick-tip-89-importing-a-text-file-into-elcollections/

A Gold Pass member asked how to create an Excel spreadsheet with n rows and m columns, the n rows representing each of the successive bars on an intraday chart, and for each of the n rows a column for each of the m different indicator values that appear on that bar. In tutorial 197 the following data is stored for each successive bar: a bar counter, date , time, close, open, high, low, the value of the calculated CCI, the values of the calculated RSI and the average of the closing price. The values for the most recent bar are updated in real time. When the program is restarted it reopens and rewrites the data. The tutorial also touched upon the use of the Microsoft Excel "Conditional Formatting" feature. Other Excel integration tutorials include: Tutorial 150 | Sharing data between two charts using Microsoft Excel Tutorial 113 | Using data from an Excel sheet to update an EasyLanguage program Tutorial 112 | Transfer price data from a Price Series Provider applied to a chart to an Excel spreadsheet Tutorial 96 | Using the Workbook component to share information with Excel

Tutorial 196 gives an example of “scope” in the context of a method. A common guideline in good programming practice suggests that a method should ideally only utilize variables that are provided through its parameter list or those that are locally declared within the method itself. However, there are situations where adhering strictly to this principle might be overly cumbersome or impractical. In such cases, it becomes possible to reference variables that have been declared at a the EasyLanguage study level. Both “types” of methods are demonstrated in this tutorial. When a variable is declared within the primary section of a study, it can be directly accessed and modified throughout that study. Nevertheless, when a method is invoked, it operates within its designated scope by design. This means that a variable declared within a method is confined to that method’s scope. Even if a variable with an identical name exists elsewhere, it is treated as a distinct and separate entity, maintaining its own distinct scope within the method. To demonstrate converting the functions to methods two functions are used: XAverage (a series function), and Average( a simple function) See https://markplex.com/free-tutorials/tutorial-196-scope-in-methods-plus-convert-a-function-to-a-method/

Tutorial 196 gives an example of “scope” in the context of a method. A common guideline in good programming practice suggests that a method should ideally only utilize variables that are provided through its parameter list or those that are locally declared within the method itself. However, there are situations where adhering strictly to this principle might be overly cumbersome or impractical. In such cases, it becomes possible to reference variables that have been declared at a the EasyLanguage study level. Both “types” of methods are demonstrated in this tutorial. When a variable is declared within the primary section of a study, it can be directly accessed and modified throughout that study. Nevertheless, when a method is invoked, it operates within its designated scope by design. This means that a variable declared within a method is confined to that method’s scope. Even if a variable with an identical name exists elsewhere, it is treated as a distinct and separate entity, maintaining its own distinct scope within the method. To demonstrate converting the functions to methods two functions are used: XAverage (a series function), and Average( a simple function) See https://markplex.com/free-tutorials/tutorial-196-scope-in-methods-plus-convert-a-function-to-a-method/

There are many reasons why you might want a TradeStation EasyLanguage program to print data to an external file on your computer. Tutorial 195 demonstrates how a program can create multiple files on a local computer and store data in each of them. In this example program, applied to a 1 minute chart, exponential moving averages are calculated and then written to a CSV (Comma Separated Value) file. Every time a new hour begins, a new file is created. The files are named using a combination of the symbol name, the bar interval, the date and the hour, for example: “T195_@ES_1_07-16-23_19.csv.” The files are created and the data stored using StreamWriter functionality and the data is available to be analyzed in a spreadsheet program. https://markplex.com/free-tutorials/tutorial-195-storing-data-in-new-files-created-by-the-program/

Quick-tip 88 demonstrates a behavior of the TradeStation DateTime object. In particular it looks at how you could save the temporary value of a DateTime object into another DateTime object using the Value property. See https://markplex.com/free-tutorials/tradestation-easylanguage-quicktips/quick-tip-88-save-a-datetime-object-into-another-datetime-object/

A Gold Pass Member asked how he would go about drawing vertical lines, 26 bars left and 26 bars right from a bar chosen by a mouse click. Such an analysis technique needs three elements: 1) To be able to detect when a bar is clicked on the chart 2) To clear vertical lines drawn when a previous bar was clicked 3) To create and draw vertical line drawing objects In this tutorial, rather than hard-coding the number of bars before and after the bar clicked, the number is determined by a user input (Gap) as are the weight and thickness of the vertical lines. The colors of the lines are hard-coded but could easily be changed (see the tutorial video). Technical lessons include: Using the ChartingHost class to determine when a bar is clicked Creating BNPoints for the bars where we draw Vertical lines Clearing and adding VerticalLines to the chart Modifying the weight and style of the vertical lines See: https://markplex.com/free-tutorials/tutorial-194-drawing-vertical-lines-to-left-and-right-of-a-clicked-bar/

See: https://markplex.com/easylanguage-programs/program-86-recurring-volume-profile-for-a-user-specified-time-period/ Program 86 uses thePrice Series Providerclass to create a volume profile for specified periods during the day. The length of this period is determined by a user input:RepeatTime. When this time elapses the volume profile is calculated and drawn. Data collection then starts for the next recurring period. This is repeated throughout the day. The profile is color coded between two user specified colors:HistColor1andHistColor2. Having calculated the volume profile, Program 86 then calculates at which price level most volume occurred during the period being analyzed. It also plots three horizontal lines at the following levels: The price high of the period being analyzed The price low of the period being analyzed The price at which the highest volume occurred during the PREVIOUS period analyzed Program 86 was designed and tested with TradeStation 10. It works on intraday minute bars. The RepeatTime input determines both the time period over which the analysis takes place and when the analysis is repeated. For example, if 5 minute bars were used and the StartTime set to 1000, and RepeatTime set to 60 then the initial period analyzed would be the first tick after 1000 to 1100. The analysis would then be automatically repeated for the first tick after 1100 to 1200,first tick after1200 to 1300 etc. This program will not work in MultiCharts because it uses the TradeStation collections and other functionality that is not available in the MultiCharts environment.

Tutorial 193 takes another look at TradeStation ActivityBars (see also Markplex tutorial 133: https://markplex.com/free-tutorials/tutorial-133-displaying-trade-at-bid-and-ask-data-using-activitybars/.) Activity bars allow the user to analyze a bar ("activity bar") smaller than the current bar. In this tutorial the 'big' bars are set to daily, with the analysis being made on one minute bars ("activity bars"). Specifically the tutorial analyzes the Commodity Channel Index (CCI) effectively applied to the smaller interval (one minute bars) and looks for "zero rejections" i.e. the CCI get close (or slightly crosses the zero line, depending on the inputs we use, but then moves back in the same directions it came from. Tutorial 193 also looks for divergence between price and the CCI. In either case, if an incidence of a zero rejection or a potential divergence occurs, an activity bars is drawn for the price range in which it occurred. The tutorial includes two methods: LegacyColorFromColObject: takes the name of a color and converts it into an integer which can be used in the AB_AddCellRange statement. NewBar: this method is called for each activity bar. Most of the functionality is concerned with looking for divergences and zero rejections. If found AB_AddCellRange adds an activity bar. The method includes functionality to get a label value from a string. It also get the color value from a TokenList containing specific names of colors from the Color class. See the tutorial page: https://markplex.com/free-tutorials/tutorial-193-activitybar-study-showing-cci-zero-rejection-and-divergence/

Quick-tip 86 demonstrates a simple indicator for TradeStation Radarscreen that has 3 columns: 3 input columns and one column that displays “buy” or “sell” depending on the price of the last trade. The user inputs a “top” price, a “bottom” price and an adjustment amount (input: Near). A further column displays "BUY" or "SELL" depending on the last price and the user inputs.

Tutorial 192 demonstrates how to create an Anchored Volume Weighted Average Price (estimated) indicator. The Volume Weighted Average Price or VWAP is calculated by summing the volume multiplied by price, summing the volume and then dividing the former by the latter. This is an estimated value because the calculation is assuming that all the volume occurs at the ‘price’, by default this is set to the average price for the bar. The ‘anchored’ means that the line is calculated from the bar that was clicked (compared to being calculated from the beginning of the day, or the start of a new session). The tutorial program can be downloaded for free by Gold Pass members at the tutorial page (make sure you are logged in): https://markplex.com/free-tutorials/tutorial-192-anchored-vwap-estimated/ If you are interested in Gold Pass visit: https://markplex.com/markplex-membership/ for the details.

Tutorial 191 demonstrates how to create a program to display a panel of information about another symbol. https://markplex.com/free-tutorials/tutorial-191-information-panel-based-on-daily-data/ The information displayed includes the symbol name, closing price, daily volume and the Relative Strength Index (RSI) calculated using daily data from a Price Series Provider (PSP). In the example shown above, the indicator is applied 5 times as part of a ‘study group.’ The program uses the PSP to provide the data for a symbol different from the charted symbol. The tutorial also demonstrates a way of calculating the RSI value using this PSP data. Technical Lessons Technically, the tutorial program 91 is based around a price series provider (PSP). Because we are interested in daily information about a symbol, the PSP is the simplest way of achieving this. The PSP and an associated event were originally created using the toolbox and then the code copied from the ‘designer generated code.’ The calculation is similar to the standard RSI function, however care needs to be taken about the calculation that occurs at the end of each PSP bar. The tutorial program also demonstrates how to create a label using 'Composite Formatting' and how to keep it stationary relative to the chart frame.