R-Server vs. RStudio

[RichardFL]

When trying to use some of the available R Nodes, I’m asked to configure the R-Server.

I currently do not have R-Server installed on my PC. Can I point to RStudio instead?

If yes, what installation folder should I be pointing to?

Thanks!

[ScottF]

Hi @RichardFL -

Yes, you can! In fact, I do this myself. In RStudio, you can go to Tools -> Global Options to find the path to your R home directory.

Then just specify this same path in your KNIME Preferences (Under KNIME -> R)

[rogerwilco]

Hi, I am trying to integrate R into Knime too, but can’t get rid of following error:

C:\Program Files\R\R-3.5.1 contains an invalid R executable!

Some info; Knime 3.7.0, R 3.5.1, Windows 10.

[ipazin]

Hi there!

Check this topic. Maybe it can help.

R source community node connection error

To use the community R source node you will have to start the RServe from R itself. Like this (you will have to have Rserve and RSclient installed): library(Rserve) library(RSclient) Rserve(port = 6311, debug = FALSE, args = “–vanilla”) # start the RServe(er) rsc <- RSconnect(port = 6311) # shutdown the server after you used it RSshutdown(rsc) And you will have to set the preferences [image]

Br,
Ivan

[mlauber71]

I was just inspired by this question above in bringing together a few entries and remarks about KNIME and R I collected over the years in a separate post - seems we had similar ideas

Install R alongside KNIME on Windows and MacOS

Over the last months I have collected a few entries about the installation of R alongside KNIME that contain some maybe useful hints how to overcome certain obstacles while installing them. I want to bring them together here. (If you are looking for a basic guide about how to install R in the first place you might look here or here). A few maybe unnecessary remarks upfront. Yes it takes some effort to get KNIME and R up and running but in the end you will be rewarded with the whole world of pos…

[gab1one]

HI @rogerwilco,

@rogerwilco

Hi, I am trying to integrate R into Knime too, but can’t get rid of following error:

C:\Program Files\R\R-3.5.1 contains an invalid R executable!

Some info; Knime 3.7.0, R 3.5.1, Windows 10.

This error message is confusing and incorrect, it is changed in 3.7.1 which will be released soon. It is most likely telling you that the Rserve package is missing in your R installation.
Following the excellent post by @mlauber71 should get you started.

best,
Gabriel