UDF Library Editor¶
Introduction¶
The UDF Library Editor is where users define new reusable functions that behave like built-in functions. These functions accept input arguments, perform arbitrary calculations, and return a single output value. Once defined, a custom function can be invoked anywhere an expression is permitted—inside local or global UDFs, runtime scripts, or other calculated fields. This makes the UDF Library the preferred way to package bespoke correlations, transformations, or proprietary models that need to be reused in multiple places across a simulation.