The Function Client API contains an evaluation method, which sends the function to be evaluated to the server.

For example, one version of the C# Eval() method takes the following arguments:

• The name of the function to run.
• The package containing the function. (The package must be deployed to the server’s package repository and loaded in the open-source R or the TERR engine for the function to be found.)
• The function arguments, represented by the SplusDataRequest object that contains a collection of objects and/or an encapsulated data set.
• A JobStartup argument specifying whether to run the function synchronously or asynchronously, and (optionally) the time to run it.

Java provides a similar evaluation implementation.

See Java C# and URL APIs and Function evaluations.