The Guide shows you Step-by-Step How to Install and Getting-Started with the Latest Eclipse 2023-03 R IDE x8664 Standard IDE for Linux Kubuntu 13.04 Raring Ringtail KDE4 amd64 Desktop.
There is the Possibility also to Install the Eclipse Platform via apt-get But the Kubuntu 13.04 Raring apt Repositories are still Back to Eclipse 3.8 Flavor.
So at the Moment if you want Install the Latest Release of Eclipse 2023-03 R Build on Linux Kubuntu 13.04 you will Need to Download and Install Eclipse 2023-03 R Release for Linux.
The Contents and Details are Essentials and Give Focus only to Instructions and Commands.

-
Download Eclipse 2023-03 R IDE for Linux:
Eclipse 2023-03 R IDE Standard Linux