In order to use the functions RCALL and RAGG a R server has to be set up and added to the Celonis configuration. This is currently still possible for Celonis 4 but is not supported in the IBC. We just updated the R-Documentation on our CPM 4.4 help: https://help.celonis.de/display/PQLE/R+Server+Functions . I also have attached the relevant documentation as a PDF.
As an alternative to R, you can also use our Python API.
The Python API works directly on the data model to retrieve necessary data, run calculations on it and push results back to the data model. Due to the vast amounts of available machine learning packages and a huge open source community for Python, you can apply any prebuilt code or scripts already available in your organization.
If you are currently using Celonis 4.3/4.4, then you can access the full documentation for the Celonis Python API by downloading it from my.celonis.de.
If you are using the IBC then you can find the documentation for the Celonis Python API at https://[your_team].[your_realm].celonis.cloud/documentation/
I hope this helps,
Calandra (Celonis Data Science Team)
PQL-R Server Functions-Documentation.pdf (3.3 KB)
PQL-RCALL-Documentation.pdf (9.4 KB)
PQL-RAGG-Documentation.pdf (7.4 KB)