The Octane Cycles Mix Float Node Wrapper node functions the same as the Cycles equivalent. The information provided has been extracted from the Blender manual. 


Mix FLoat Wrapper

Figure 1: Octane CyclesMixFloatNode Wrapper Node


Octane Cycles Mix Float Node Wrapper Parameters

Clamp Factor - Limit the factor value between 0.0 and 1.0. If this option is unchecked then the node operates using Extrapolation.

Factor - Amount of mixing between the A and B inputs.

A/B - The two inputs that are mixed together.