Overlay Expression Syntax

[schaubach]

Is the syntax for Overlay Expressions documented anywhere?

One example of what I'm trying to accomplish is to create an "advance decline line".

Is there a way to create a running total using Overlay Expressions?

[Larry Marchman]

Hey schaubach,

Here's a basic sketch of Overlay Expressions...
http://forum.esignalcentral.com:80/s...threadid=28960

There are adv-dec numbers in the Continuum -QC Breadthalizers as I'm sure you are aware.
And a certain amount available from the eSignal feed...
http://forum.esignalcentral.com/show...ted#post119626

Regarding a breadth adv-dec that's cumulative day-to-day, i.e. today's value is added to running total, that's not available as is and can't be done with overlay in QCharts to the best of my knowledge.

LAM

[schaubach]

Thanks for your reply Larry. That's a bit unfortunate that a product as sophisticated as qCharts, that a AD cummulative line cannot be drawn.

As an alternative, for those interested, here is a free chart showing the NYSE Advance Decline Line:
http://stockcharts.com/h-sc/ui?c=$NY...%5Bp%5D%5Bi%5D