linearUnit: Linear unit function with unit derivatives.
Description
The function calculates the activation of the units and returns a list, in
which the first entry is the linear activation of the units and the second
entry is the derivative of the transfer function.
Usage
linearUnit(input, ...)
Arguments
input
Input for the activation function.
...
Additional parameters, not used.
Value
A list with the linear activation in the first entry and the
derivative of the activation in the second entry.