Home                           

 Try Investor/RT             

 Investor/RT Tour           

 Getting Started              

 What's New                  

 Testimonials                 

  Q&A - Broken down by Topic . . .      Complete List of Questions - All Topics
     Charts and Technical Indicators      Market Profile Charts
     RTL: Scans, Signals, and Custom Indicators      Importing and Exporting
     Trading Systems and Backtesting      Schedules
     Quotepages, Portfolios and Custom Columns      Alarms / Alerts
     Data: Historical Data, the Database, and Data Services      User Variables (T# and V#)
     Custom Instruments: Spreads and Pairs      General / Miscellaneous
     Controls, Windows, and the Button Indicator      Autotrading
     Slide Shows      Product Line
  Investor/RT Q & A
Answers to Common Questions
RTL: Scans, Signals, and Custom Indicators

If your don't find your answer below, please explore the support options found here.  Also, please notify support@linnsoft.com of any questions that are not answered here, so the answers may be added.

Question:

Where can I find a very basic novice explanation of how to use the RTL language to create Scans, Signals, or Custom Indicators?

  Answer

Question:

Where can I access additional information on the RTL Tokens / Functions (used to build Scans, Signals, and Custom Indicators) and exactly what each one means?

  Answer

Question:

What's the difference between a Signal and a Scan?    Answer

Question:

How do I reference the historical 52 week high (or low) for a daily chart or backtest?

  Answer

Question:

I'm seeing discrepancies between my indicator values in a Custom Column (Scan, Signal, or Backtest) versus the values I see in my chart (or in another program).  What might account for this?

  Answer

Question:

How do I create a Scan or Signal that looks for consolidation and then break out
of say a 4-8 week consolidation period?

  Answer

Question:

How would I setup a scan or signal to find Hammer, Inverse Hammer, or any other Candlestick Patterns (CPR)?

  Answer

Question:

How would I create a scan or signal which accessed data from multiple periodicities simultaneously (1-min, 5-min, 30-min, 90-min, and Daily)?

  Answer

Question:

How can I paint a technical indicator line or histogram based on any given signal or condition?

  Answer

Question:

I have symbols broken up into groups using quotepages.  When I run a scan on all my symbols, in the resulting quotepage, I would like to be able to identify which quotepages each symbol resides in.  How can I do this?

  Answer

Question:

Is it possible to build the comment into the setup dialog box for charts and scans so it could be left unchanged or modified slightly when updating?

  Answer

Question:

How can I find and delete "dead" symbols or symbols that do not have sufficient historical data?

  Answer

Question:

How can I merge the symbols from several different quotepages into a single quotepage?

  Answer

Question:

How would I create a signal that found MSH (Market Structure High) and MSL (Market Structure Low)?

  Answer

Question:

How do I scan for the biggest gappers during the pre-market?  My symbol limit is 200 symbols but I would like to monitor 2000 symbols for gaps.  Can I do this?

  Answer

Question:

Is there any way to set certain properties (display format, security type, monitoring options, session, highlight color, user data, etc) using a scan?

  Answer

Question:

I have a technical indicator (Exponential Moving Average - EMA) whose values in a chart, custom column, or scan does not match those of another source.  What could account for the discrepancy?

  Answer

Question:

When scanning daily data, at what time in the day do my current tokens (CL, HI, MA, RSI, etc) rollover and become previous tokens (CL.1, HI.1, MA.1, RSI.1, etc)?  At what point does TOKEN become TOKEN.1?

  Answer

Question:

Is it possible to create moving averages of specific technical indicators (Money Flow, Money Flow Index, Fischer Transform, etc.), that would be shown in the same pane as the indicator? More generally, can I see an indicator of an indicator?

  Answer

Question:

How can scans or signals be incorporated into a chart so that visual backtesting may be performed?

  Answer

Question:

How do I create a cumulative daily A-D Line for the S&P 500 (or any other custom group of stocks or symbols)?

  Answer

Question:

I've noticed that when I assign a name to a scan like" Liquidity Check "it converts the space to an underscore, like "Liquidity_Check". However, this practice is not used for quotepages. What are the rules for assigning names to scans, quotepages, and other objects?

  Answer

Question:

I need a Scan/Signal that will...

  Answer 

Question:

How would I write a scan to pick out symbols based on a date or word pattern?

  Answer 

Question:

How can I monitor the difference between the ask volume and bid volume (AVOL - BVOL) historically on an intraday chart?

  Answer 

Question:

Is it possible in the RTL language to mix ticker symbols within the same signal, scan, or custom indicator?  For instance, a signal which detects that both MWD and MER are above their upper Bollinger band.

  Answer 

Question:

What is the conditional operator (? operator) in RTL, and how is it used?

  Answer

Question:

I have several questions regarding the RTL language with respect the if/then/else statements, nested statements, comments, and multiple statements or expressions.  Where can I find this information?    Answer

Question:

In the RTL language, how can I use the same technical indicator token multiple times within the same expression?    Answer

Question:

In an RTL expression, is there any way to use the CI or Signal names directly in the syntax?    Answer

Question:

I have a scan that I would like to run every 5 minutes throughout the day, but I would like a quotepage to accumulate all hits throughout the day and record the time of entry into the quotepage.  How can I do this?    Answer

Question:

I have a complex scan formula, here is just a part of it: (CL >LRF_B) AND ((LRF_B - LRF_LOWER) > 0.85). When I run the scan I see columns for CL, LRF_B and LRF_LOWER in the resulting quotepage, but I also see some columns with funny names like T3 = LRF_B - LRF_LOWER. I'm not a programmer, what are these and how do I get rid of them in the resulting quotepage?    Answer