R To R

Takes the R workspace from the input port and modifies it according to the entered R script. The node outputs an R workspace containing the updated variables.

More details about R:
http://www.r-project.org/
Short-refcard.pdf

Options

R Snippet

R Script

The code being executed in R. Code may be executed in full or in part using the Evaluate Script and Evaluate Selection options, respectively. Output is printed to the console.

Column List

The list contains the column that are available in the input table. Double click any of the column names to insert the respective field in the expression editor. It will replace your current selection or simply insert at the current caret position.

Flow Variable List

The list contains the flow variables that are currently visible to the node. Double clicking any of the entries will insert the respective identifier at the current cursor position in your expression editor, replacing the current selection.

Templates

Category

A template category defined by the author.

Title

Name of the template.

Description

A brief overview of the purpose of the template.

Preview

The code to be applied to your expression editor.

Input Ports

R Input (Workspace)

Output Ports

R Output (Workspace)

Views

R Std Output

The text sent to standard out during the execution of R executable as well as the text of the .Rout file generated by R.

R Error Output

The text sent to standard error during the execution of R executable as well as the text of the .Rout file generated by R. (If it appears in gray, it's the output of a previously failing run which is preserved for your trouble shooting.)

Best Friends (Incoming)

• Table to R (40 %) 
• R Source (Workspace) (21 %) 
• R To R (16 %) 
• Add Table To R (10 %) 
• R Learner (2 %) 
• CASE Switch Model (End) (1 %) 
• R Snippet (2:1) (< 1 %) 
• Table Column to Variable (< 1 %) 
• Table Row to Variable (< 1 %) 
• Table Row To Variable Loop Start (< 1 %) 
• Extract Context Properties (< 1 %) 
• Java Edit Variable (< 1 %) 
• Generic Loop Start (< 1 %) 
• CASE Switch Variable (End) (< 1 %) 
• CASE Switch Variable (Start) (< 1 %) 
• Merge Variables (< 1 %) 
• Math Formula (Variable) (< 1 %) 
• Excel Writer (XLS) (< 1 %) 
• Double Input (< 1 %) 
• String Input (< 1 %) 
• Value Selection (< 1 %) 
• Python Script (1⇒1) (< 1 %) Deprecated
• R Model Reader (< 1 %) 
• Show all 23 recommendations

Best Friends (Outgoing)

• R to Table (41 %) 
• R View (Workspace) (21 %) 
• R To R (19 %) 
• Add Table To R (5 %) 
• R Predictor (3 %) 
• WrappedNode Output (1 %) 
• R To PMML (1 %) 
• R Model Writer (1 %) 
• Write Variables (< 1 %) 
• Create File Name (< 1 %) 
• Image Writer (Port) (< 1 %) 
• Extract Context Properties (< 1 %) 
• Variable Loop End (< 1 %) 
• CASE Switch Variable (Start) (< 1 %) 
• CASE Switch Model (End) (< 1 %) 
• XLS Writer (< 1 %) Deprecated
• File Download (< 1 %) 
• Table to R (< 1 %) 
• Show all 18 recommendations

Installation

To use this node in KNIME, install KNIME R-Project nodes from the following update site: