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

First, create a quotepage which contains the group of stocks or symbols on which you'd like to create your cumulative A-D Line. Now download enough daily data on the quotepage to cover the desired period. In our example, we'll create an A-D Line on the S&P 500 from January 1, 2004 to present (August 20, 2004).

Once you've downloaded enough data, we'll need to create two custom indicators which will provide us with what we need.

The first custom indicator will have the following syntax:

(CL > CL.1) + (CL.1 > CL)

How do I put an overall stop loss or target on a trading system that trades a basket/quotepage of stocks?

The Array User Variable (ARRAY) technical indicator will be instrumental in accomplishing an overall stop loss on a system which tests a basket/quotepage of stocks. In our example, we'll assume that our system is an intraday system running on a given quotepage of stocks, and when the overall system gets down a certain dollar amount, we want to get out of all positions and not re-enter until the next day. Otherwise, the process should be system-independent.

How do you display bid/ask dots/lines on the chart?

The bid/ask feedback has been improved since this tutorial was originally written. Instead of dots at the bid and ask, we now draw a vertical line from the bid to the ask price. There is also a small horizontal line representing the current price that protrudes left from the bid/ask line (this becomes an arrow when in "Presentation Mode").

In RTL how can I use the same technical indicator token multiple times within the same formula? Is there a way to use other RTL object names directly in the formula?

The RTL formula (syntax) checking process has been improved in several ways to facilitate entry of RTL scan, signal, and custom indicator formulas. The improvements are designed to facilitate entry of technical indicator tokens in cases where multiple tokens are needed for the same technical indicator. In addition, the improvements enable the user to extend the technical indicator tokens available for use in RTL formulas through the use of pre-defined technical indicator "presets".

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

The difference lies in the context in which the two are used. Scans operate on current data, and can be used to:

  • Find symbols within a given quotepage (and periodicity) that match a given criteria, or...
  • Set properties or V# variables for all the symbols in a given quotepage...

A scan is sometimes called a "screen". A scan can either be run manually by the user, or be scheduled to run periodically.

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?

First, I would create a quotepage...and make sure it's empty at the begin of each session. Let's say the quotepage name is "myQP". You can empty it by just opening and clicking the green trash can on quotepage toolbar (You could also probably do this with a scheduled scan in order to automate just before each session).

Now, let's assume the syntax for your scan is:

MA > MA_A AND MA.1

You'll just need to change the syntax to:

QP = "myQP" OR (MA > MA_A AND MA.1

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