independentVarRef
— References a predefined signal as an input to a function
varID
- the internal XML identifier for the input signal
min
(optional) - the allowable lower limit for the input signal
max
(optional) - the allowable upper limit for the input signal
extrapolate
(optional) - extrapolation flags for IV out-of-bounds (enumerated)
neither
min
max
both
interpolate
(optional) - Interpolation flags for independent variable (enumerated)
discrete
linear
quadraticSpline
cubicSpline
An independentVarRef more fully describes the input mapping of the function by pointing to a separate breakpoint definition element. An optional extrapolate attribute describes how to extrapolate the output value when the input value exceeds specified values. An optional interpolate attribute indicates how to perform the interpolation within the table (using discrete [or stairstep], linear, quadratic or cubic splines). This allows common breakpoint values for many tables.