topic Re: Is it possible to use an FCMP function in IML? in SAS/IML Software and Matrix Computations

Is it possible to use an FCMP function in IML?

_sjm_ — Thu, 28 Mar 2024 14:30:20 GMT

I am having difficulty using a PROC FCMP created function based on python code in IML. Is this even possible? I haven't been successful finding any online documentation/examples about this. I don't want to keep troubleshooting if this can't be done. If it can be done, can resources please be shared? Or maybe I need to take an entirely different approach.

Additional details ... python code needs to stay python, that is, I know I can translate it to run in SAS but I have a lot of complex already validated python code I need to run in SAS, so this isn't feasible. Python code is based on matrix syntax, which is why I believe IML must be used for processing rather than a data step. Functions are created via the FCMC procedure using Python Language Elements. The PYTHON procedure is unavailable in my SAS environment.

Any and all input is much appreciated.

Re: Is it possible to use an FCMP function in IML?

Rick_SAS — Thu, 28 Mar 2024 14:41:24 GMT

No, PROC FCMP is used to define functions for the DATA step and procedures that process data row-by-row. IML is a matrix language and has its own way to create and call user-defined functions. These functions can take matrices and vectors as arguments and can return the same. See

Extending IML - Defining a Function Module - The DO Loop (sas.com)

Everything you wanted to know about writing SAS/IML modules - The DO Loop

Re: Is it possible to use an FCMP function in IML?

_sjm_ — Thu, 28 Mar 2024 14:46:59 GMT

Thanks Rick. I will abandon this approach.