Help write an Expression to show average values from variable of devices

[user5319]

In some pistons I have a device variable that I have assigned multiple devices to.

While it is easy to use the log>physical devices to return the average value of a specific type(illumination, temperature, dimmer level) I want to also be able to log this as a piston state using an expression.

This could be something like "the average temperature or average dimmer levels are: xx" But I am having trouble writing this out as an expresion. What am I doing wrong?

[nh.schottfam]

Why not set a variable with the value then use that in your set piston state

Others may have another idea

[jshimota]

is it possible you can use:

[RELEASE] Averaging Plus - Average just about anything. Trigger on High/Low/Delta/Average/Percent

*** BPTWorld apps are no longer being developed or maintained. Thanks *** Introducing 'Averaging Plus' Average just about anything. Get notifications based on Set points. Select groups of devices that share a common attribute Devices do not have to be the same type! Adjustable time between averages Selectable High and Low set points Selectable Reference device to calculate Delta value Get notifications and/or turn a switch on when set point is reached All speech requires 'Follow Me' Automati…

I use AP to maintain an average of temp and humidity for my dashboard and for use in rules:

[user5319]

Thanks for convincing me to go with the easy workaround. Hehe