Node Connectivity
There are 5696 nodes that can be used as predessesor
for a node with an input port of type 
Generic Port.
R Source (Workspace)
A source node that reads data from R into KNIME.
R Snippet
Allows execution of R commands in a local R installation.
R View (Table)
Generates images in KNIME of R views from a local R installation.
R View (Workspace)
Enables the usage of R views using the local R installation.
R to Table
Converts an R object into a KNIME data table.
Table to R
Converts a KNIME data table into an R object.
R to R
Takes a R workspace and modifies it based on the entered R script.
Add Table to R
Merges a KNIME table into an R workspace.
R Learner
Allows execution of R commands in a local R installation for building an R model.
R Predictor
Allows execution of R code in a local R installation for predicting data attributes using new data and an existing model.