Hey,
I'm an XSI guy moving to Houdini so a little new to the software,
I'm trying to use an Attribute VOP to apply velocity as an overall multiplier to all points (bound to another attribute) and then use this to multiply the scaling in one axis. Using the average node in the Attribute VOP seems to only average two or more attributes onto individual points.
In XSI ICE i would have used the "Get Set Average" See image
Thanks
Colin