Do I always need historical data to make a data mining prediction? Do you have any authoritative reference link on this?
If we don't always need the historical data, then would the following case be realistic for determining the prevailing value or a threshold?
Say Inputs: A, B, C, D, where: C = A/B
Since C is a computation and already exists, what would the Predicted C imply or mean in other words? Do you have an authoritative link on this?