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Once a user has defined a function it is possible to register such function with the function factory's catalog for a given name. Registered functions can be created by name just like the built-in functions. In the following example a function is registered with the catalog and used by name when creating a new function (the sum of a gaussian with the newly registered function):
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User Defined Functions
A user define new functions by either scripting them on the fly or by writing java classes.
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